{"id":1154193,"date":"2025-01-13T17:48:16","date_gmt":"2025-01-13T09:48:16","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1154193.html"},"modified":"2025-01-13T17:48:19","modified_gmt":"2025-01-13T09:48:19","slug":"python%e5%a6%82%e4%bd%95%e5%af%b9%e5%ba%94%e5%8c%ba%e9%97%b4%e6%ae%b5","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1154193.html","title":{"rendered":"python\u5982\u4f55\u5bf9\u5e94\u533a\u95f4\u6bb5"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/25183826\/35271cc9-c625-483e-af19-24bb5b481125.webp\" alt=\"python\u5982\u4f55\u5bf9\u5e94\u533a\u95f4\u6bb5\" \/><\/p>\n<p><p> <strong>Python\u4e2d\u53ef\u4ee5\u4f7f\u7528\u591a\u79cd\u65b9\u6cd5\u6765\u5904\u7406\u533a\u95f4\u6bb5\u95ee\u9898\uff0c\u5305\u62ec\u4f7f\u7528if-elif\u8bed\u53e5\u3001\u5217\u8868\u63a8\u5bfc\u5f0f\u3001\u5b57\u5178\u6620\u5c04\u3001bisect\u6a21\u5757\u7b49<\/strong>\u3002\u5176\u4e2d\uff0c\u4f7f\u7528if-elif\u8bed\u53e5\u662f\u6700\u76f4\u63a5\u7684\u65b9\u5f0f\uff0c\u9002\u7528\u4e8e\u533a\u95f4\u6bb5\u8f83\u5c11\u7684\u60c5\u51b5\uff1b\u5217\u8868\u63a8\u5bfc\u5f0f\u548c\u5b57\u5178\u6620\u5c04\u9002\u5408\u533a\u95f4\u6bb5\u8f83\u591a\u4e14\u6709\u4e00\u5b9a\u89c4\u5f8b\u6027\u7684\u60c5\u51b5\uff1bbisect\u6a21\u5757\u5219\u9002\u7528\u4e8e\u9700\u8981\u9ad8\u6548\u67e5\u627e\u533a\u95f4\u7684\u60c5\u51b5\u3002\u4e0b\u9762\u91cd\u70b9\u4ecb\u7ecd\u4f7f\u7528bisect\u6a21\u5757\u6765\u5bf9\u5e94\u533a\u95f4\u6bb5\u7684\u65b9\u6cd5\u3002<\/p>\n<\/p>\n<p><p>bisect\u6a21\u5757\u63d0\u4f9b\u4e86\u4e8c\u5206\u67e5\u627e\u7b97\u6cd5\uff0c\u53ef\u4ee5\u5feb\u901f\u5b9a\u4f4d\u503c\u5728\u6709\u5e8f\u5217\u8868\u4e2d\u7684\u4f4d\u7f6e\u3002\u8fd9\u5bf9\u4e8e\u9700\u8981\u9ad8\u6548\u5904\u7406\u533a\u95f4\u6bb5\u7684\u95ee\u9898\u975e\u5e38\u6709\u7528\u3002\u9996\u5148\u9700\u8981\u5b9a\u4e49\u4e00\u4e2a\u5305\u542b\u533a\u95f4\u7aef\u70b9\u7684\u6709\u5e8f\u5217\u8868\uff0c\u7136\u540e\u4f7f\u7528bisect.bisect\u51fd\u6570\u627e\u5230\u503c\u5e94\u63d2\u5165\u7684\u4f4d\u7f6e\uff0c\u4ece\u800c\u786e\u5b9a\u5176\u6240\u5728\u7684\u533a\u95f4\u3002<\/p>\n<\/p>\n<p><h2>\u4e00\u3001\u4f7f\u7528if-elif\u8bed\u53e5<\/h2>\n<\/p>\n<p><p>\u5728Python\u4e2d\uff0cif-elif\u8bed\u53e5\u662f\u5904\u7406\u533a\u95f4\u6bb5\u95ee\u9898\u6700\u76f4\u63a5\u7684\u65b9\u6cd5\u3002\u5bf9\u4e8e\u533a\u95f4\u6bb5\u8f83\u5c11\u7684\u60c5\u51b5\uff0c\u8fd9\u79cd\u65b9\u6cd5\u975e\u5e38\u76f4\u89c2\u4e14\u6613\u4e8e\u5b9e\u73b0\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">def get_grade(score):<\/p>\n<p>    if score &gt;= 90:<\/p>\n<p>        return &#39;A&#39;<\/p>\n<p>    elif score &gt;= 80:<\/p>\n<p>        return &#39;B&#39;<\/p>\n<p>    elif score &gt;= 70:<\/p>\n<p>        return &#39;C&#39;<\/p>\n<p>    elif score &gt;= 60:<\/p>\n<p>        return &#39;D&#39;<\/p>\n<p>    else:<\/p>\n<p>        return &#39;F&#39;<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u79cd\u65b9\u6cd5\u7684\u4f18\u70b9\u662f\u7b80\u5355\u660e\u4e86\uff0c\u9002\u7528\u4e8e\u5904\u7406\u5c11\u91cf\u533a\u95f4\u6bb5\u7684\u60c5\u51b5\u3002\u7136\u800c\uff0c\u5f53\u533a\u95f4\u6bb5\u6570\u91cf\u8f83\u591a\u65f6\uff0c\u4ee3\u7801\u5c06\u53d8\u5f97\u5197\u957f\u4e14\u96be\u4ee5\u7ef4\u62a4\u3002<\/p>\n<\/p>\n<p><h2>\u4e8c\u3001\u4f7f\u7528\u5217\u8868\u63a8\u5bfc\u5f0f\u548c\u5b57\u5178\u6620\u5c04<\/h2>\n<\/p>\n<p><p>\u5bf9\u4e8e\u533a\u95f4\u6bb5\u8f83\u591a\u4e14\u6709\u89c4\u5f8b\u7684\u60c5\u51b5\uff0c\u53ef\u4ee5\u4f7f\u7528\u5217\u8868\u63a8\u5bfc\u5f0f\u6216\u5b57\u5178\u6620\u5c04\u6765\u7b80\u5316\u4ee3\u7801\u3002\u5217\u8868\u63a8\u5bfc\u5f0f\u53ef\u4ee5\u5728\u4e00\u884c\u4ee3\u7801\u4e2d\u5b8c\u6210\u5bf9\u533a\u95f4\u7684\u5224\u65ad\uff0c\u800c\u5b57\u5178\u6620\u5c04\u5219\u53ef\u4ee5\u901a\u8fc7\u952e\u503c\u5bf9\u6765\u5b9e\u73b0\u533a\u95f4\u7684\u5feb\u901f\u67e5\u627e\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">grade_ranges = {<\/p>\n<p>    (90, 100): &#39;A&#39;,<\/p>\n<p>    (80, 89): &#39;B&#39;,<\/p>\n<p>    (70, 79): &#39;C&#39;,<\/p>\n<p>    (60, 69): &#39;D&#39;,<\/p>\n<p>    (0, 59): &#39;F&#39;<\/p>\n<p>}<\/p>\n<p>def get_grade(score):<\/p>\n<p>    for (low, high), grade in grade_ranges.items():<\/p>\n<p>        if low &lt;= score &lt;= high:<\/p>\n<p>            return grade<\/p>\n<p>    return &#39;Invalid score&#39;<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u79cd\u65b9\u6cd5\u7684\u4f18\u70b9\u662f\u4ee3\u7801\u66f4\u52a0\u7b80\u6d01\uff0c\u4e14\u6613\u4e8e\u6269\u5c55\u548c\u7ef4\u62a4\u3002\u7136\u800c\uff0c\u5f53\u533a\u95f4\u6bb5\u6570\u91cf\u975e\u5e38\u591a\u65f6\uff0c\u67e5\u627e\u6548\u7387\u53ef\u80fd\u4f1a\u53d7\u5230\u5f71\u54cd\u3002<\/p>\n<\/p>\n<p><h2>\u4e09\u3001\u4f7f\u7528bisect\u6a21\u5757<\/h2>\n<\/p>\n<p><p>bisect\u6a21\u5757\u63d0\u4f9b\u4e86\u4e8c\u5206\u67e5\u627e\u7b97\u6cd5\uff0c\u53ef\u4ee5\u9ad8\u6548\u5730\u5904\u7406\u533a\u95f4\u6bb5\u95ee\u9898\u3002\u9996\u5148\u9700\u8981\u5b9a\u4e49\u4e00\u4e2a\u5305\u542b\u533a\u95f4\u7aef\u70b9\u7684\u6709\u5e8f\u5217\u8868\uff0c\u7136\u540e\u4f7f\u7528bisect.bisect\u51fd\u6570\u627e\u5230\u503c\u5e94\u63d2\u5165\u7684\u4f4d\u7f6e\uff0c\u4ece\u800c\u786e\u5b9a\u5176\u6240\u5728\u7684\u533a\u95f4\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import bisect<\/p>\n<p>breakpoints = [60, 70, 80, 90]<\/p>\n<p>grades = &#39;FDCBA&#39;<\/p>\n<p>def get_grade(score):<\/p>\n<p>    return grades[bisect.bisect(breakpoints, score)]<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u79cd\u65b9\u6cd5\u7684\u4f18\u70b9\u662f\u67e5\u627e\u6548\u7387\u9ad8\uff0c\u7279\u522b\u9002\u7528\u4e8e\u9700\u8981\u9891\u7e41\u67e5\u627e\u533a\u95f4\u7684\u60c5\u51b5\u3002\u5e76\u4e14\u4ee3\u7801\u7b80\u6d01\u6613\u4e8e\u7ef4\u62a4\u3002<\/p>\n<\/p>\n<p><h2>\u56db\u3001\u7ed3\u5408\u4f7f\u7528\u591a\u79cd\u65b9\u6cd5<\/h2>\n<\/p>\n<p><p>\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u60c5\u51b5\u7ed3\u5408\u4f7f\u7528\u591a\u79cd\u65b9\u6cd5\u3002\u4f8b\u5982\uff0c\u5bf9\u4e8e\u533a\u95f4\u6bb5\u6570\u91cf\u8f83\u5c11\u7684\u90e8\u5206\uff0c\u53ef\u4ee5\u4f7f\u7528if-elif\u8bed\u53e5\uff0c\u800c\u5bf9\u4e8e\u533a\u95f4\u6bb5\u6570\u91cf\u8f83\u591a\u7684\u90e8\u5206\uff0c\u53ef\u4ee5\u4f7f\u7528bisect\u6a21\u5757\u3002\u8fd9\u79cd\u7ec4\u5408\u4f7f\u7528\u7684\u65b9\u6cd5\u53ef\u4ee5\u5728\u4fdd\u8bc1\u4ee3\u7801\u7b80\u6d01\u7684\u540c\u65f6\uff0c\u63d0\u9ad8\u67e5\u627e\u6548\u7387\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import bisect<\/p>\n<p>breakpoints = [60, 70, 80, 90]<\/p>\n<p>grades = &#39;FDCBA&#39;<\/p>\n<p>def get_grade(score):<\/p>\n<p>    if score &lt; 0 or score &gt; 100:<\/p>\n<p>        return &#39;Invalid score&#39;<\/p>\n<p>    return grades[bisect.bisect(breakpoints, score)]<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u79cd\u65b9\u6cd5\u4e0d\u4ec5\u4fdd\u8bc1\u4e86\u4ee3\u7801\u7684\u7b80\u6d01\u6027\uff0c\u8fd8\u63d0\u9ad8\u4e86\u67e5\u627e\u6548\u7387\uff0c\u975e\u5e38\u9002\u7528\u4e8e\u5b9e\u9645\u5e94\u7528\u4e2d\u7684\u533a\u95f4\u6bb5\u5904\u7406\u95ee\u9898\u3002<\/p>\n<\/p>\n<p><h2>\u4e94\u3001\u4f7f\u7528pandas\u8fdb\u884c\u533a\u95f4\u6bb5\u5904\u7406<\/h2>\n<\/p>\n<p><p>\u5728\u6570\u636e\u5904\u7406\u548c\u5206\u6790\u4e2d\uff0c\u7ecf\u5e38\u9700\u8981\u5bf9\u6570\u636e\u8fdb\u884c\u533a\u95f4\u5212\u5206\u3002\u8fd9\u65f6\u53ef\u4ee5\u4f7f\u7528pandas\u5e93\u4e2d\u7684cut\u51fd\u6570\u6765\u5b9e\u73b0\u3002cut\u51fd\u6570\u53ef\u4ee5\u5c06\u6570\u636e\u5206\u6210\u6307\u5b9a\u7684\u533a\u95f4\uff0c\u5e76\u8fd4\u56de\u76f8\u5e94\u7684\u533a\u95f4\u6807\u7b7e\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import pandas as pd<\/p>\n<p>data = [45, 65, 78, 89, 92, 100]<\/p>\n<p>bins = [0, 60, 70, 80, 90, 100]<\/p>\n<p>labels = [&#39;F&#39;, &#39;D&#39;, &#39;C&#39;, &#39;B&#39;, &#39;A&#39;]<\/p>\n<p>grades = pd.cut(data, bins=bins, labels=labels)<\/p>\n<p>print(grades)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u79cd\u65b9\u6cd5\u7684\u4f18\u70b9\u662f\u9002\u7528\u4e8e\u5927\u89c4\u6a21\u6570\u636e\u7684\u533a\u95f4\u5212\u5206\uff0c\u4e14pandas\u5e93\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u6570\u636e\u5904\u7406\u548c\u5206\u6790\u529f\u80fd\uff0c\u53ef\u4ee5\u65b9\u4fbf\u5730\u8fdb\u884c\u540e\u7eed\u7684\u6570\u636e\u5904\u7406\u548c\u5206\u6790\u3002<\/p>\n<\/p>\n<p><h2>\u516d\u3001\u4f7f\u7528numpy\u8fdb\u884c\u533a\u95f4\u6bb5\u5904\u7406<\/h2>\n<\/p>\n<p><p>\u5bf9\u4e8e\u9700\u8981\u9ad8\u6548\u5904\u7406\u7684\u5927\u89c4\u6a21\u6570\u636e\uff0c\u53ef\u4ee5\u4f7f\u7528numpy\u5e93\u4e2d\u7684digitize\u51fd\u6570\u3002digitize\u51fd\u6570\u53ef\u4ee5\u5c06\u6570\u636e\u6620\u5c04\u5230\u6307\u5b9a\u7684\u533a\u95f4\uff0c\u5e76\u8fd4\u56de\u76f8\u5e94\u7684\u533a\u95f4\u7d22\u5f15\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import numpy as np<\/p>\n<p>data = np.array([45, 65, 78, 89, 92, 100])<\/p>\n<p>bins = np.array([0, 60, 70, 80, 90, 100])<\/p>\n<p>indices = np.digitize(data, bins)<\/p>\n<p>grades = np.array([&#39;F&#39;, &#39;D&#39;, &#39;C&#39;, &#39;B&#39;, &#39;A&#39;])[indices-1]<\/p>\n<p>print(grades)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u79cd\u65b9\u6cd5\u7684\u4f18\u70b9\u662f\u5904\u7406\u6548\u7387\u9ad8\uff0c\u7279\u522b\u9002\u7528\u4e8e\u9700\u8981\u9ad8\u6548\u5904\u7406\u7684\u5927\u89c4\u6a21\u6570\u636e\u3002\u540c\u65f6\uff0cnumpy\u5e93\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u6570\u503c\u8ba1\u7b97\u529f\u80fd\uff0c\u53ef\u4ee5\u65b9\u4fbf\u5730\u8fdb\u884c\u6570\u636e\u7684\u8fdb\u4e00\u6b65\u5904\u7406\u548c\u5206\u6790\u3002<\/p>\n<\/p>\n<p><h2>\u4e03\u3001\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u8fdb\u884c\u533a\u95f4\u6bb5\u5339\u914d<\/h2>\n<\/p>\n<p><p>\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u53ef\u4ee5\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u6765\u5339\u914d\u533a\u95f4\u6bb5\u3002\u6b63\u5219\u8868\u8fbe\u5f0f\u662f\u4e00\u79cd\u5f3a\u5927\u7684\u5b57\u7b26\u4e32\u5339\u914d\u5de5\u5177\uff0c\u53ef\u4ee5\u65b9\u4fbf\u5730\u5b9e\u73b0\u590d\u6742\u7684\u533a\u95f4\u5339\u914d\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import re<\/p>\n<p>def get_grade(score):<\/p>\n<p>    if re.match(r&#39;^100$&#39;, str(score)):<\/p>\n<p>        return &#39;A&#39;<\/p>\n<p>    elif re.match(r&#39;^9\\d$&#39;, str(score)):<\/p>\n<p>        return &#39;A&#39;<\/p>\n<p>    elif re.match(r&#39;^8\\d$&#39;, str(score)):<\/p>\n<p>        return &#39;B&#39;<\/p>\n<p>    elif re.match(r&#39;^7\\d$&#39;, str(score)):<\/p>\n<p>        return &#39;C&#39;<\/p>\n<p>    elif re.match(r&#39;^6\\d$&#39;, str(score)):<\/p>\n<p>        return &#39;D&#39;<\/p>\n<p>    elif re.match(r&#39;^[0-5]\\d$&#39;, str(score)):<\/p>\n<p>        return &#39;F&#39;<\/p>\n<p>    else:<\/p>\n<p>        return &#39;Invalid score&#39;<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u79cd\u65b9\u6cd5\u7684\u4f18\u70b9\u662f\u53ef\u4ee5\u5904\u7406\u590d\u6742\u7684\u533a\u95f4\u5339\u914d\uff0c\u7279\u522b\u9002\u7528\u4e8e\u9700\u8981\u5904\u7406\u590d\u6742\u5b57\u7b26\u4e32\u6a21\u5f0f\u7684\u60c5\u51b5\u3002\u7136\u800c\uff0c\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u8bed\u6cd5\u8f83\u4e3a\u590d\u6742\uff0c\u4e0d\u9002\u7528\u4e8e\u6240\u6709\u7684\u533a\u95f4\u5339\u914d\u95ee\u9898\u3002<\/p>\n<\/p>\n<p><h2>\u516b\u3001\u4f7f\u7528\u81ea\u5b9a\u4e49\u7c7b\u5904\u7406\u533a\u95f4\u6bb5<\/h2>\n<\/p>\n<p><p>\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u53ef\u4ee5\u5b9a\u4e49\u4e00\u4e2a\u81ea\u5b9a\u4e49\u7c7b\u6765\u5904\u7406\u533a\u95f4\u6bb5\u95ee\u9898\u3002\u81ea\u5b9a\u4e49\u7c7b\u53ef\u4ee5\u5c01\u88c5\u533a\u95f4\u6bb5\u7684\u76f8\u5173\u903b\u8f91\uff0c\u4f7f\u4ee3\u7801\u66f4\u52a0\u6a21\u5757\u5316\u548c\u6613\u4e8e\u7ef4\u62a4\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">class GradeMapper:<\/p>\n<p>    def __init__(self, breakpoints, grades):<\/p>\n<p>        self.breakpoints = breakpoints<\/p>\n<p>        self.grades = grades<\/p>\n<p>    def get_grade(self, score):<\/p>\n<p>        for i, point in enumerate(self.breakpoints):<\/p>\n<p>            if score &lt; point:<\/p>\n<p>                return self.grades[i]<\/p>\n<p>        return self.grades[-1]<\/p>\n<p>mapper = GradeMapper([60, 70, 80, 90], &#39;FDCBA&#39;)<\/p>\n<p>print(mapper.get_grade(85))<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u79cd\u65b9\u6cd5\u7684\u4f18\u70b9\u662f\u4ee3\u7801\u6a21\u5757\u5316\uff0c\u6613\u4e8e\u6269\u5c55\u548c\u7ef4\u62a4\u3002\u540c\u65f6\uff0c\u81ea\u5b9a\u4e49\u7c7b\u53ef\u4ee5\u5c01\u88c5\u66f4\u591a\u7684\u903b\u8f91\u548c\u529f\u80fd\uff0c\u9002\u7528\u4e8e\u590d\u6742\u7684\u533a\u95f4\u6bb5\u5904\u7406\u95ee\u9898\u3002<\/p>\n<\/p>\n<p><h2>\u4e5d\u3001\u4f7f\u7528scipy\u5e93\u8fdb\u884c\u533a\u95f4\u6bb5\u5904\u7406<\/h2>\n<\/p>\n<p><p>scipy\u5e93\u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u79d1\u5b66\u8ba1\u7b97\u5e93\uff0c\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u6570\u636e\u5904\u7406\u548c\u5206\u6790\u529f\u80fd\u3002\u53ef\u4ee5\u4f7f\u7528scipy\u5e93\u4e2d\u7684interpolate\u6a21\u5757\u6765\u5904\u7406\u533a\u95f4\u6bb5\u95ee\u9898\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">from scipy.interpolate import interp1d<\/p>\n<p>breakpoints = [0, 60, 70, 80, 90, 100]<\/p>\n<p>grades = [0, 1, 2, 3, 4, 5]<\/p>\n<p>interp_func = interp1d(breakpoints, grades, kind=&#39;nearest&#39;, fill_value=&#39;extrapolate&#39;)<\/p>\n<p>def get_grade(score):<\/p>\n<p>    grade = interp_func(score)<\/p>\n<p>    return &#39;FDCBA&#39;[int(grade)]<\/p>\n<p>print(get_grade(85))<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u79cd\u65b9\u6cd5\u7684\u4f18\u70b9\u662f\u53ef\u4ee5\u4f7f\u7528\u63d2\u503c\u51fd\u6570\u6765\u5904\u7406\u533a\u95f4\u6bb5\u95ee\u9898\uff0c\u9002\u7528\u4e8e\u9700\u8981\u9ad8\u7cbe\u5ea6\u8ba1\u7b97\u7684\u60c5\u51b5\u3002\u540c\u65f6\uff0cscipy\u5e93\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u79d1\u5b66\u8ba1\u7b97\u529f\u80fd\uff0c\u53ef\u4ee5\u65b9\u4fbf\u5730\u8fdb\u884c\u6570\u636e\u7684\u8fdb\u4e00\u6b65\u5904\u7406\u548c\u5206\u6790\u3002<\/p>\n<\/p>\n<p><h2>\u5341\u3001\u4f7f\u7528itertools\u5e93\u8fdb\u884c\u533a\u95f4\u6bb5\u5904\u7406<\/h2>\n<\/p>\n<p><p>itertools\u5e93\u63d0\u4f9b\u4e86\u4e00\u7ec4\u5feb\u901f\u3001\u5185\u5b58\u9ad8\u6548\u7684\u5de5\u5177\uff0c\u7528\u4e8e\u64cd\u4f5c\u8fed\u4ee3\u5668\u3002\u53ef\u4ee5\u4f7f\u7528itertools\u5e93\u4e2d\u7684groupby\u51fd\u6570\u6765\u5904\u7406\u533a\u95f4\u6bb5\u95ee\u9898\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import itertools<\/p>\n<p>def get_grade(score):<\/p>\n<p>    ranges = [(0, 60, &#39;F&#39;), (60, 70, &#39;D&#39;), (70, 80, &#39;C&#39;), (80, 90, &#39;B&#39;), (90, 100, &#39;A&#39;)]<\/p>\n<p>    for low, high, grade in ranges:<\/p>\n<p>        if low &lt;= score &lt; high:<\/p>\n<p>            return grade<\/p>\n<p>    return &#39;Invalid score&#39;<\/p>\n<p>print(get_grade(85))<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u79cd\u65b9\u6cd5\u7684\u4f18\u70b9\u662f\u4ee3\u7801\u7b80\u6d01\uff0c\u6613\u4e8e\u7406\u89e3\u548c\u7ef4\u62a4\u3002\u540c\u65f6\uff0citertools\u5e93\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u8fed\u4ee3\u5668\u5de5\u5177\uff0c\u53ef\u4ee5\u65b9\u4fbf\u5730\u5904\u7406\u5404\u79cd\u590d\u6742\u7684\u8fed\u4ee3\u95ee\u9898\u3002<\/p>\n<\/p>\n<p><h2>\u5341\u4e00\u3001\u4f7f\u7528\u51fd\u6570\u5f0f\u7f16\u7a0b\u8fdb\u884c\u533a\u95f4\u6bb5\u5904\u7406<\/h2>\n<\/p>\n<p><p>\u51fd\u6570\u5f0f\u7f16\u7a0b\u662f\u4e00\u79cd\u7f16\u7a0b\u8303\u5f0f\uff0c\u5f3a\u8c03\u4f7f\u7528\u7eaf\u51fd\u6570\u548c\u4e0d\u53ef\u53d8\u6570\u636e\u3002\u53ef\u4ee5\u4f7f\u7528\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u601d\u60f3\u6765\u5904\u7406\u533a\u95f4\u6bb5\u95ee\u9898\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">from functools import partial<\/p>\n<p>def in_range(low, high, score):<\/p>\n<p>    return low &lt;= score &lt; high<\/p>\n<p>def get_grade(score):<\/p>\n<p>    ranges = [(0, 60, &#39;F&#39;), (60, 70, &#39;D&#39;), (70, 80, &#39;C&#39;), (80, 90, &#39;B&#39;), (90, 100, &#39;A&#39;)]<\/p>\n<p>    for low, high, grade in ranges:<\/p>\n<p>        if in_range(low, high, score):<\/p>\n<p>            return grade<\/p>\n<p>    return &#39;Invalid score&#39;<\/p>\n<p>print(get_grade(85))<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u79cd\u65b9\u6cd5\u7684\u4f18\u70b9\u662f\u4ee3\u7801\u7b80\u6d01\uff0c\u5177\u6709\u51fd\u6570\u5f0f\u7f16\u7a0b\u7684\u4f18\u96c5\u548c\u7075\u6d3b\u6027\u3002\u51fd\u6570\u5f0f\u7f16\u7a0b\u5f3a\u8c03\u4f7f\u7528\u7eaf\u51fd\u6570\u548c\u4e0d\u53ef\u53d8\u6570\u636e\uff0c\u4f7f\u4ee3\u7801\u66f4\u6613\u4e8e\u7406\u89e3\u548c\u8c03\u8bd5\u3002<\/p>\n<\/p>\n<p><h2>\u5341\u4e8c\u3001\u7ed3\u5408\u591a\u79cd\u65b9\u6cd5\u8fdb\u884c\u533a\u95f4\u6bb5\u5904\u7406<\/h2>\n<\/p>\n<p><p>\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u60c5\u51b5\u7ed3\u5408\u4f7f\u7528\u591a\u79cd\u65b9\u6cd5\u3002\u4f8b\u5982\uff0c\u5bf9\u4e8e\u533a\u95f4\u6bb5\u6570\u91cf\u8f83\u5c11\u7684\u90e8\u5206\uff0c\u53ef\u4ee5\u4f7f\u7528if-elif\u8bed\u53e5\uff0c\u800c\u5bf9\u4e8e\u533a\u95f4\u6bb5\u6570\u91cf\u8f83\u591a\u7684\u90e8\u5206\uff0c\u53ef\u4ee5\u4f7f\u7528bisect\u6a21\u5757\u3002\u8fd9\u79cd\u7ec4\u5408\u4f7f\u7528\u7684\u65b9\u6cd5\u53ef\u4ee5\u5728\u4fdd\u8bc1\u4ee3\u7801\u7b80\u6d01\u7684\u540c\u65f6\uff0c\u63d0\u9ad8\u67e5\u627e\u6548\u7387\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import bisect<\/p>\n<p>breakpoints = [60, 70, 80, 90]<\/p>\n<p>grades = &#39;FDCBA&#39;<\/p>\n<p>def get_grade(score):<\/p>\n<p>    if score &lt; 0 or score &gt; 100:<\/p>\n<p>        return &#39;Invalid score&#39;<\/p>\n<p>    return grades[bisect.bisect(breakpoints, score)]<\/p>\n<p>print(get_grade(85))<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u79cd\u65b9\u6cd5\u4e0d\u4ec5\u4fdd\u8bc1\u4e86\u4ee3\u7801\u7684\u7b80\u6d01\u6027\uff0c\u8fd8\u63d0\u9ad8\u4e86\u67e5\u627e\u6548\u7387\uff0c\u975e\u5e38\u9002\u7528\u4e8e\u5b9e\u9645\u5e94\u7528\u4e2d\u7684\u533a\u95f4\u6bb5\u5904\u7406\u95ee\u9898\u3002<\/p>\n<\/p>\n<p><p>\u603b\u7ed3\u8d77\u6765\uff0cPython\u4e2d\u5904\u7406\u533a\u95f4\u6bb5\u95ee\u9898\u7684\u65b9\u6cd5\u591a\u79cd\u591a\u6837\uff0c\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u60c5\u51b5\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u3002<strong>\u4f7f\u7528if-elif\u8bed\u53e5\u9002\u7528\u4e8e\u533a\u95f4\u6bb5\u8f83\u5c11\u7684\u60c5\u51b5\uff0c\u4f7f\u7528\u5217\u8868\u63a8\u5bfc\u5f0f\u548c\u5b57\u5178\u6620\u5c04\u9002\u5408\u533a\u95f4\u6bb5\u8f83\u591a\u4e14\u6709\u4e00\u5b9a\u89c4\u5f8b\u6027\u7684\u60c5\u51b5\uff0c\u4f7f\u7528bisect\u6a21\u5757\u9002\u7528\u4e8e\u9700\u8981\u9ad8\u6548\u67e5\u627e\u533a\u95f4\u7684\u60c5\u51b5<\/strong>\u3002\u6b64\u5916\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528pandas\u3001numpy\u3001\u6b63\u5219\u8868\u8fbe\u5f0f\u3001\u81ea\u5b9a\u4e49\u7c7b\u3001scipy\u3001itertools\u3001\u51fd\u6570\u5f0f\u7f16\u7a0b\u7b49\u65b9\u6cd5\u6765\u5904\u7406\u533a\u95f4\u6bb5\u95ee\u9898\u3002\u7ed3\u5408\u591a\u79cd\u65b9\u6cd5\uff0c\u53ef\u4ee5\u5728\u4fdd\u8bc1\u4ee3\u7801\u7b80\u6d01\u7684\u540c\u65f6\uff0c\u63d0\u9ad8\u67e5\u627e\u6548\u7387\uff0c\u9002\u7528\u4e8e\u5404\u79cd\u5b9e\u9645\u5e94\u7528\u573a\u666f\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>Python\u4e2d\u5982\u4f55\u5b9a\u4e49\u548c\u4f7f\u7528\u533a\u95f4\u6bb5\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u5217\u8868\u3001\u5143\u7ec4\u6216\u81ea\u5b9a\u4e49\u7c7b\u6765\u5b9a\u4e49\u533a\u95f4\u6bb5\u3002\u6700\u5e38\u89c1\u7684\u65b9\u6cd5\u662f\u4f7f\u7528<code>range()<\/code>\u51fd\u6570\u521b\u5efa\u4e00\u4e2a\u6570\u5b57\u533a\u95f4\uff0c\u6216\u8005\u5229\u7528Python\u7684<code>pandas<\/code>\u5e93\u4e2d\u7684<code>pd.Interval<\/code>\u6765\u521b\u5efa\u66f4\u590d\u6742\u7684\u533a\u95f4\u6bb5\u3002\u8fd9\u4e9b\u533a\u95f4\u6bb5\u53ef\u4ee5\u7528\u4e8e\u6570\u636e\u5206\u6790\u3001\u7edf\u8ba1\u8ba1\u7b97\u7b49\u591a\u79cd\u573a\u666f\u3002<\/p>\n<p><strong>\u5982\u4f55\u5224\u65ad\u4e00\u4e2a\u6570\u662f\u5426\u5728\u6307\u5b9a\u7684\u533a\u95f4\u6bb5\u5185\uff1f<\/strong><br \/>\u53ef\u4ee5\u901a\u8fc7\u7b80\u5355\u7684\u6bd4\u8f83\u8fd0\u7b97\u7b26\u6765\u5224\u65ad\u4e00\u4e2a\u6570\u662f\u5426\u5728\u533a\u95f4\u6bb5\u5185\u3002\u4f8b\u5982\uff0c\u5bf9\u4e8e\u4e00\u4e2a\u533a\u95f4<code>(a, b)<\/code>\uff0c\u53ef\u4ee5\u4f7f\u7528\u6761\u4ef6<code>a &lt; x &lt; b<\/code>\u6765\u5224\u65ad\u6570<code>x<\/code>\u662f\u5426\u5728\u8be5\u533a\u95f4\u5185\u3002\u5982\u679c\u4f7f\u7528<code>pandas<\/code>\u5e93\uff0c\u53ef\u4ee5\u5229\u7528<code>Interval<\/code>\u5bf9\u8c61\u7684<code>cont<a href=\"https:\/\/docs.pingcode.com\/blog\/59162.html\" target=\"_blank\">AI<\/a>ns()<\/code>\u65b9\u6cd5\u6765\u8fdb\u884c\u5224\u65ad\uff0c\u4ee3\u7801\u793a\u4f8b\u5982\u4e0b\uff1a<\/p>\n<pre><code class=\"language-python\">import pandas as pd\ninterval = pd.Interval(1, 5)\nprint(interval.contains(3))  # \u8f93\u51fa\uff1aTrue\n<\/code><\/pre>\n<p><strong>\u5728Python\u4e2d\u5982\u4f55\u751f\u6210\u591a\u4e2a\u533a\u95f4\u6bb5\u5e76\u8fdb\u884c\u904d\u5386\uff1f<\/strong><br \/>\u53ef\u4ee5\u4f7f\u7528\u5217\u8868\u63a8\u5bfc\u5f0f\u6216\u5faa\u73af\u6765\u751f\u6210\u591a\u4e2a\u533a\u95f4\u6bb5\u3002\u901a\u8fc7<code>numpy<\/code>\u5e93\u7684<code>linspace<\/code>\u548c<code>arange<\/code>\u51fd\u6570\uff0c\u4e5f\u53ef\u4ee5\u65b9\u4fbf\u5730\u751f\u6210\u5747\u5300\u5206\u5e03\u7684\u533a\u95f4\u6bb5\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u521b\u5efa\u548c\u904d\u5386\u591a\u4e2a\u533a\u95f4\u6bb5\uff1a<\/p>\n<pre><code class=\"language-python\">import numpy as np\n\n# \u751f\u6210\u533a\u95f4\u6bb5\nintervals = [np.arange(i, i + 5) for i in range(0, 20, 5)]\nfor interval in intervals:\n    print(interval)\n<\/code><\/pre>\n<p>\u8fd9\u6837\uff0c\u60a8\u5c31\u53ef\u4ee5\u8f7b\u677e\u5730\u521b\u5efa\u5e76\u904d\u5386\u591a\u4e2a\u533a\u95f4\u6bb5\uff0c\u9002\u7528\u4e8e\u6570\u636e\u5206\u6790\u548c\u5904\u7406\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"Python\u4e2d\u53ef\u4ee5\u4f7f\u7528\u591a\u79cd\u65b9\u6cd5\u6765\u5904\u7406\u533a\u95f4\u6bb5\u95ee\u9898\uff0c\u5305\u62ec\u4f7f\u7528if-elif\u8bed\u53e5\u3001\u5217\u8868\u63a8\u5bfc\u5f0f\u3001\u5b57\u5178\u6620\u5c04\u3001bisect [&hellip;]","protected":false},"author":3,"featured_media":1154194,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1154193"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=1154193"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1154193\/revisions"}],"predecessor-version":[{"id":1154195,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1154193\/revisions\/1154195"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1154194"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1154193"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1154193"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1154193"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}