{"id":973086,"date":"2024-12-27T05:54:01","date_gmt":"2024-12-26T21:54:01","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/973086.html"},"modified":"2024-12-27T05:54:03","modified_gmt":"2024-12-26T21:54:03","slug":"python3%e5%a6%82%e4%bd%95import","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/973086.html","title":{"rendered":"python3\u5982\u4f55import"},"content":{"rendered":"

\"python3\u5982\u4f55import\"<\/p>\n

\u5728Python 3\u4e2d\uff0cimport\u7684\u65b9\u5f0f\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u9014\u5f84\u5b9e\u73b0\uff0c\u5305\u62ec\u76f4\u63a5\u5bfc\u5165\u6574\u4e2a\u6a21\u5757\u3001\u4ece\u6a21\u5757\u4e2d\u5bfc\u5165\u7279\u5b9a\u7684\u51fd\u6570\u6216\u7c7b\u3001\u4ee5\u53ca\u4f7f\u7528\u522b\u540d\u6765\u7b80\u5316\u4ee3\u7801\u3002\u76f4\u63a5\u5bfc\u5165\u6574\u4e2a\u6a21\u5757\u3001\u4ece\u6a21\u5757\u4e2d\u5bfc\u5165\u7279\u5b9a\u7684\u51fd\u6570\u6216\u7c7b\u3001\u4f7f\u7528\u522b\u540d\u6765\u7b80\u5316\u4ee3\u7801\u3002<\/strong> \u5bfc\u5165\u6a21\u5757\u662fPython\u7f16\u7a0b\u7684\u57fa\u7840\u4e4b\u4e00\uff0c\u5b83\u5141\u8bb8\u6211\u4eec\u91cd\u7528\u5df2\u6709\u7684\u4ee3\u7801\uff0c\u63d0\u9ad8\u5f00\u53d1\u6548\u7387\u3002\u4f8b\u5982\uff0c\u76f4\u63a5\u5bfc\u5165\u4e00\u4e2a\u6a21\u5757\u662f\u6700\u5e38\u7528\u7684\u65b9\u5f0f\u4e4b\u4e00\uff0c\u56e0\u4e3a\u5b83\u53ef\u4ee5\u786e\u4fdd\u6211\u4eec\u8bbf\u95ee\u6a21\u5757\u4e2d\u7684\u6240\u6709\u529f\u80fd\uff0c\u800c\u4e0d\u4f1a\u9057\u6f0f\u4efb\u4f55\u91cd\u8981\u7684\u90e8\u5206\u3002<\/p>\n<\/p>\n

\u5bf9\u4e8e\u521d\u5b66\u8005\u6765\u8bf4\uff0c\u7406\u89e3\u6a21\u5757\u7684\u5bfc\u5165\u673a\u5236\u662f\u975e\u5e38\u5173\u952e\u7684\u3002Python\u7684\u6a21\u5757\u7cfb\u7edf\u5141\u8bb8\u6211\u4eec\u5c06\u4ee3\u7801\u7ec4\u7ec7\u6210\u903b\u8f91\u5757\uff0c\u4f7f\u5176\u66f4\u52a0\u6613\u4e8e\u7ef4\u62a4\u548c\u5171\u4eab\u3002\u901a\u8fc7import<\/code>\u8bed\u53e5\uff0c\u6211\u4eec\u53ef\u4ee5\u5bfc\u5165Python\u6807\u51c6\u5e93\u4e2d\u7684\u6a21\u5757\uff0c\u4e5f\u53ef\u4ee5\u5bfc\u5165\u6211\u4eec\u81ea\u5df1\u521b\u5efa\u7684\u6a21\u5757\u3002<\/p>\n<\/p>\n

\u4e00\u3001DIRECT IMPORT\uff08\u76f4\u63a5\u5bfc\u5165\uff09<\/p>\n<\/p>\n

\u76f4\u63a5\u5bfc\u5165\u662f\u6700\u57fa\u672c\u7684import\u65b9\u5f0f\uff0c\u5b83\u5141\u8bb8\u6211\u4eec\u5bfc\u5165\u6574\u4e2a\u6a21\u5757\uff0c\u5e76\u4f7f\u7528\u6a21\u5757\u540d\u6765\u8bbf\u95ee\u5176\u4e2d\u7684\u529f\u80fd\u3002<\/p>\n<\/p>\n

\u5f53\u6211\u4eec\u76f4\u63a5\u5bfc\u5165\u4e00\u4e2a\u6a21\u5757\u65f6\uff0c\u53ef\u4ee5\u901a\u8fc7\u8be5\u6a21\u5757\u7684\u540d\u79f0\u6765\u8bbf\u95ee\u5176\u4e2d\u7684\u6240\u6709\u51fd\u6570\u548c\u7c7b\u3002\u8fd9\u79cd\u65b9\u6cd5\u7684\u4f18\u70b9\u662f\u4ee3\u7801\u6e05\u6670\u660e\u4e86\uff0c\u53ef\u4ee5\u5728\u5927\u578b\u9879\u76ee\u4e2d\u6709\u6548\u5730\u7ec4\u7ec7\u548c\u7ba1\u7406\u4ee3\u7801\u3002\u4f8b\u5982\uff0cPython\u6807\u51c6\u5e93\u4e2d\u7684math<\/code>\u6a21\u5757\u63d0\u4f9b\u4e86\u8bb8\u591a\u6570\u5b66\u51fd\u6570\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u5bfc\u5165\uff1a<\/p>\n<\/p>\n

import math<\/p>\n
result = math.sqrt(25)<\/p>\n
print(result)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u5bfc\u5165\u4e86math<\/code>\u6a21\u5757\uff0c\u5e76\u4f7f\u7528math.sqrt()<\/code>\u51fd\u6570\u6765\u8ba1\u7b97\u5e73\u65b9\u6839\u3002\u76f4\u63a5\u5bfc\u5165\u7684\u597d\u5904\u662f\u4ee3\u7801\u7ed3\u6784\u6e05\u6670\uff0c\u5bb9\u6613\u7406\u89e3\u3002<\/p>\n<\/p>\n
\u4e8c\u3001IMPORT SPECIFIC FUNCTIONS OR CLASSES\uff08\u5bfc\u5165\u7279\u5b9a\u51fd\u6570\u6216\u7c7b\uff09<\/p>\n<\/p>\n
\u6709\u65f6\uff0c\u6211\u4eec\u53ea\u9700\u8981\u4f7f\u7528\u6a21\u5757\u4e2d\u7684\u67d0\u4e9b\u529f\u80fd\uff0c\u53ef\u4ee5\u901a\u8fc7from … import\u8bed\u53e5\u6765\u5bfc\u5165\u7279\u5b9a\u7684\u51fd\u6570\u6216\u7c7b\u3002\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\uff0c\u5e76\u51cf\u5c11\u547d\u540d\u7a7a\u95f4\u6c61\u67d3\u3002<\/p>\n<\/p>\n
\u5982\u679c\u6211\u4eec\u53ea\u9700\u8981\u4f7f\u7528\u6a21\u5757\u4e2d\u7684\u67d0\u4e2a\u51fd\u6570\u6216\u7c7b\uff0c\u53ef\u4ee5\u9009\u62e9\u53ea\u5bfc\u5165\u8fd9\u4e9b\u7279\u5b9a\u7684\u90e8\u5206\u3002\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u8ba9\u4ee3\u7801\u66f4\u7b80\u6d01\uff0c\u540c\u65f6\u907f\u514d\u5bfc\u5165\u4e0d\u5fc5\u8981\u7684\u90e8\u5206\u3002\u4f8b\u5982\uff0c\u5982\u679c\u6211\u4eec\u53ea\u9700\u8981\u4f7f\u7528math<\/code>\u6a21\u5757\u4e2d\u7684sqrt<\/code>\u51fd\u6570\uff0c\u53ef\u4ee5\u8fd9\u6837\u5bfc\u5165\uff1a<\/p>\n<\/p>\n
from math import sqrt<\/p>\n
result = sqrt(25)<\/p>\n
print(result)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u6211\u4eec\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528sqrt()<\/code>\u51fd\u6570\uff0c\u800c\u4e0d\u9700\u8981\u6bcf\u6b21\u90fd\u5199\u6a21\u5757\u540d\u3002\u8fd9\u4f7f\u5f97\u4ee3\u7801\u66f4\u52a0\u7b80\u6d01\uff0c\u4f46\u540c\u65f6\u4e5f\u9700\u8981\u6ce8\u610f\u53ef\u80fd\u7684\u547d\u540d\u51b2\u7a81\u3002<\/p>\n<\/p>\n
\u4e09\u3001USING ALIASES\uff08\u4f7f\u7528\u522b\u540d\uff09<\/p>\n<\/p>\n
\u5728\u5bfc\u5165\u6a21\u5757\u6216\u51fd\u6570\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528as\u5173\u952e\u5b57\u6765\u4e3a\u5176\u6307\u5b9a\u4e00\u4e2a\u522b\u540d\u3002\u8fd9\u5728\u6a21\u5757\u540d\u79f0\u8fc7\u957f\u6216\u4e0e\u5f53\u524d\u547d\u540d\u7a7a\u95f4\u6709\u51b2\u7a81\u65f6\u5c24\u4e3a\u6709\u7528\u3002<\/p>\n<\/p>\n
\u4f7f\u7528\u522b\u540d\u53ef\u4ee5\u4f7f\u4ee3\u7801\u66f4\u52a0\u7b80\u6d01\uff0c\u5c24\u5176\u662f\u5728\u6a21\u5757\u540d\u8f83\u957f\u6216\u5bb9\u6613\u5f15\u8d77\u547d\u540d\u51b2\u7a81\u65f6\u3002\u4f7f\u7528as\u5173\u952e\u5b57\u53ef\u4ee5\u4e3a\u6a21\u5757\u6216\u51fd\u6570\u6307\u5b9a\u4e00\u4e2a\u522b\u540d\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
import numpy as np<\/p>\n
array = np.array([1, 2, 3])<\/p>\n
print(array)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u5c06numpy<\/code>\u6a21\u5757\u91cd\u547d\u540d\u4e3anp<\/code>\uff0c\u8fd9\u6837\u53ef\u4ee5\u51cf\u5c11\u4ee3\u7801\u4e2d\u7684\u8f93\u5165\u91cf\uff0c\u540c\u65f6\u4fdd\u6301\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u3002<\/p>\n<\/p>\n
\u56db\u3001IMPORT ALL CONTENT\uff08\u5bfc\u5165\u6240\u6709\u5185\u5bb9\uff09<\/p>\n<\/p>\n
\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u53ef\u80fd\u9700\u8981\u5bfc\u5165\u6a21\u5757\u4e2d\u7684\u6240\u6709\u5185\u5bb9\u3002\u8fd9\u53ef\u4ee5\u901a\u8fc7from … import *\u8bed\u53e5\u5b9e\u73b0\uff0c\u4f46\u8fd9\u79cd\u65b9\u6cd5\u901a\u5e38\u4e0d\u88ab\u63a8\u8350\uff0c\u56e0\u4e3a\u5b83\u53ef\u80fd\u5bfc\u81f4\u547d\u540d\u51b2\u7a81\u5e76\u964d\u4f4e\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u3002<\/p>\n<\/p>\n
\u867d\u7136from module import *\u53ef\u4ee5\u5bfc\u5165\u6a21\u5757\u4e2d\u7684\u6240\u6709\u5185\u5bb9\uff0c\u4f46\u8fd9\u79cd\u65b9\u6cd5\u901a\u5e38\u4e0d\u63a8\u8350\u4f7f\u7528\uff0c\u56e0\u4e3a\u5b83\u53ef\u80fd\u5bfc\u81f4\u547d\u540d\u7a7a\u95f4\u6c61\u67d3\u3002\u5c24\u5176\u662f\u5728\u5927\u578b\u9879\u76ee\u4e2d\uff0c\u8fd9\u79cd\u65b9\u6cd5\u4f1a\u4f7f\u5f97\u4ee3\u7801\u96be\u4ee5\u7ef4\u62a4\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
from math import *<\/p>\n
result = sqrt(25)<\/p>\n
print(result)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u79cd\u505a\u6cd5\u867d\u7136\u7b80\u5355\uff0c\u4f46\u5728\u590d\u6742\u7684\u4ee3\u7801\u4e2d\u53ef\u80fd\u4f1a\u5bfc\u81f4\u547d\u540d\u51b2\u7a81\uff0c\u5e76\u964d\u4f4e\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u3002\u56e0\u6b64\uff0c\u5efa\u8bae\u8c28\u614e\u4f7f\u7528\u8fd9\u79cd\u65b9\u6cd5\u3002<\/p>\n<\/p>\n
\u4e94\u3001IMPORT CUSTOM MODULES\uff08\u5bfc\u5165\u81ea\u5b9a\u4e49\u6a21\u5757\uff09<\/p>\n<\/p>\n
\u9664\u4e86Python\u6807\u51c6\u5e93\uff0c\u6211\u4eec\u8fd8\u53ef\u4ee5\u5bfc\u5165\u81ea\u5df1\u521b\u5efa\u7684\u6a21\u5757\u3002\u901a\u8fc7\u5c06\u76f8\u5173\u4ee3\u7801\u653e\u5728\u4e00\u4e2a.py\u6587\u4ef6\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u5176\u4ed6\u6587\u4ef6\u4e2d\u901a\u8fc7import\u8bed\u53e5\u6765\u4f7f\u7528\u5b83\u4eec\u3002<\/p>\n<\/p>\n
\u5728Python\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u8f7b\u677e\u5730\u521b\u5efa\u548c\u5bfc\u5165\u81ea\u5b9a\u4e49\u6a21\u5757\u3002\u53ea\u9700\u5c06\u76f8\u5173\u4ee3\u7801\u653e\u5728\u4e00\u4e2a.py\u6587\u4ef6\u4e2d\uff0c\u7136\u540e\u5728\u9700\u8981\u4f7f\u7528\u7684\u5730\u65b9\u5bfc\u5165\u5373\u53ef\u3002\u4f8b\u5982\uff0c\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u540d\u4e3amy_module.py<\/code>\u7684\u6587\u4ef6\uff0c\u5176\u4e2d\u5305\u542b\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n<\/p>\n
def greet(name):<\/p>\n
    return f"Hello, {name}!"<\/p>\n
def farewell(name):<\/p>\n
    return f"Goodbye, {name}!"<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u6211\u4eec\u53ef\u4ee5\u5728\u53e6\u4e00\u4e2a\u6587\u4ef6\u4e2d\u5bfc\u5165\u8fd9\u4e2a\u6a21\u5757\uff1a<\/p>\n<\/p>\n
import my_module<\/p>\n
print(my_module.greet("Alice"))<\/p>\n
print(my_module.farewell("Bob"))<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u6211\u4eec\u53ef\u4ee5\u5c06\u4ee3\u7801\u7ec4\u7ec7\u5f97\u66f4\u597d\uff0c\u5e76\u5728\u591a\u4e2a\u9879\u76ee\u4e2d\u91cd\u7528\u3002<\/p>\n<\/p>\n
\u516d\u3001IMPORTING PACKAGES\uff08\u5bfc\u5165\u5305\uff09<\/p>\n<\/p>\n
Python\u4e2d\u7684\u5305\u662f\u4e00\u4e2a\u5305\u542b\u591a\u4e2a\u6a21\u5757\u7684\u76ee\u5f55\u3002\u5305\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u7ec4\u7ec7\u6a21\u5757\uff0c\u5e76\u63d0\u4f9b\u66f4\u597d\u7684\u547d\u540d\u7a7a\u95f4\u7ba1\u7406\u3002<\/p>\n<\/p>\n
\u5305\u662fPython\u4e2d\u7684\u4e00\u79cd\u7279\u6b8a\u6a21\u5757\uff0c\u5b83\u5305\u542b\u591a\u4e2a\u6a21\u5757\uff0c\u5e76\u901a\u8fc7\u4e00\u4e2a\u7279\u6b8a\u7684__init__.py<\/code>\u6587\u4ef6\u6765\u521d\u59cb\u5316\u3002\u5728\u5bfc\u5165\u5305\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u9009\u62e9\u5bfc\u5165\u6574\u4e2a\u5305\u6216\u5305\u4e2d\u7684\u7279\u5b9a\u6a21\u5757\u3002\u4f8b\u5982\uff0c\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u540d\u4e3amy_package<\/code>\u7684\u76ee\u5f55\uff0c\u5176\u4e2d\u5305\u542b\u4ee5\u4e0b\u7ed3\u6784\uff1a<\/p>\n<\/p>\n
my_package\/<\/p>\n
    __init__.py<\/p>\n
    module1.py<\/p>\n
    module2.py<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u65b9\u5f0f\u5bfc\u5165\uff1a<\/p>\n<\/p>\n
import my_package.module1<\/p>\n
from my_package import module2<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4f7f\u7528\u5305\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u66f4\u597d\u5730\u7ec4\u7ec7\u4ee3\u7801\uff0c\u5e76\u5728\u5927\u578b\u9879\u76ee\u4e2d\u63d0\u4f9b\u66f4\u597d\u7684\u547d\u540d\u7a7a\u95f4\u7ba1\u7406\u3002<\/p>\n<\/p>\n
\u4e03\u3001CONDITIONAL IMPORTS\uff08\u6761\u4ef6\u5bfc\u5165\uff09<\/p>\n<\/p>\n
\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u53ef\u80fd\u9700\u8981\u6839\u636e\u7279\u5b9a\u6761\u4ef6\u5bfc\u5165\u6a21\u5757\u3002\u8fd9\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u5728\u4e0d\u9700\u8981\u65f6\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u5bfc\u5165\uff0c\u4ece\u800c\u63d0\u9ad8\u7a0b\u5e8f\u7684\u6027\u80fd\u3002<\/p>\n<\/p>\n
\u6761\u4ef6\u5bfc\u5165\u662f\u4e00\u79cd\u6839\u636e\u7279\u5b9a\u6761\u4ef6\u52a8\u6001\u5bfc\u5165\u6a21\u5757\u7684\u65b9\u6cd5\u3002\u8fd9\u5728\u9700\u8981\u6839\u636e\u73af\u5883\u6216\u914d\u7f6e\u9009\u62e9\u6027\u5bfc\u5165\u6a21\u5757\u65f6\u975e\u5e38\u6709\u7528\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\uff1a<\/p>\n<\/p>\n
if some_condition:<\/p>\n
    import module_a<\/p>\n
else:<\/p>\n
    import module_b<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u5728\u4e0d\u9700\u8981\u65f6\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u5bfc\u5165\uff0c\u4ece\u800c\u63d0\u9ad8\u7a0b\u5e8f\u7684\u6027\u80fd\u3002<\/p>\n<\/p>\n
\u516b\u3001DYNAMIC IMPORTS\uff08\u52a8\u6001\u5bfc\u5165\uff09<\/p>\n<\/p>\n
\u5728\u8fd0\u884c\u65f6\u52a8\u6001\u5bfc\u5165\u6a21\u5757\u6709\u65f6\u662f\u5fc5\u8981\u7684\uff0c\u7279\u522b\u662f\u5728\u63d2\u4ef6\u7cfb\u7edf\u6216\u9700\u8981\u6839\u636e\u7528\u6237\u8f93\u5165\u5bfc\u5165\u6a21\u5757\u7684\u5e94\u7528\u4e2d\u3002\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528importlib<\/code>\u6a21\u5757\u6765\u5b9e\u73b0\u52a8\u6001\u5bfc\u5165\u3002<\/p>\n<\/p>\n
\u52a8\u6001\u5bfc\u5165\u5141\u8bb8\u6211\u4eec\u5728\u8fd0\u884c\u65f6\u6839\u636e\u9700\u8981\u5bfc\u5165\u6a21\u5757\u3002\u8fd9\u5728\u5b9e\u73b0\u63d2\u4ef6\u7cfb\u7edf\u6216\u9700\u8981\u6839\u636e\u7528\u6237\u8f93\u5165\u5bfc\u5165\u6a21\u5757\u7684\u5e94\u7528\u4e2d\u975e\u5e38\u6709\u7528\u3002Python\u7684importlib<\/code>\u6a21\u5757\u63d0\u4f9b\u4e86\u52a8\u6001\u5bfc\u5165\u7684\u529f\u80fd\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
import importlib<\/p>\n
module_name = "math"<\/p>\n
math_module = importlib.import_module(module_name)<\/p>\n
result = math_module.sqrt(25)<\/p>\n
print(result)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u901a\u8fc7\u8fd9\u79cd\u65b9\u6cd5\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u8fd0\u884c\u65f6\u6839\u636e\u6761\u4ef6\u5bfc\u5165\u6a21\u5757\uff0c\u4ece\u800c\u5b9e\u73b0\u66f4\u52a0\u7075\u6d3b\u7684\u4ee3\u7801\u7ed3\u6784\u3002<\/p>\n<\/p>\n
\u603b\u7ed3<\/p>\n<\/p>\n
Python\u7684import\u673a\u5236\u63d0\u4f9b\u4e86\u591a\u79cd\u5bfc\u5165\u6a21\u5757\u7684\u65b9\u6cd5\uff0c\u5305\u62ec\u76f4\u63a5\u5bfc\u5165\u3001\u5bfc\u5165\u7279\u5b9a\u90e8\u5206\u3001\u4f7f\u7528\u522b\u540d\u3001\u5bfc\u5165\u81ea\u5b9a\u4e49\u6a21\u5757\u3001\u5bfc\u5165\u5305\u3001\u6761\u4ef6\u5bfc\u5165\u548c\u52a8\u6001\u5bfc\u5165\u3002\u6bcf\u79cd\u65b9\u6cd5\u90fd\u6709\u5176\u4f18\u7f3a\u70b9\uff0c\u9009\u62e9\u5408\u9002\u7684\u5bfc\u5165\u65b9\u5f0f\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u3001\u7ef4\u62a4\u6027\u548c\u6027\u80fd\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u6211\u4eec\u5e94\u6839\u636e\u9879\u76ee\u9700\u6c42\u548c\u4ee3\u7801\u7ed3\u6784\u9009\u62e9\u6700\u5408\u9002\u7684\u5bfc\u5165\u65b9\u5f0f\uff0c\u4ee5\u5b9e\u73b0\u6700\u4f73\u7684\u7f16\u7a0b\u5b9e\u8df5\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u5982\u4f55\u5728Python3\u4e2d\u5bfc\u5165\u6a21\u5757\uff1f<\/strong>
\u5728Python3\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528import<\/code>\u8bed\u53e5\u6765\u5bfc\u5165\u6a21\u5757\u3002\u53ea\u9700\u5728\u4ee3\u7801\u4e2d\u5199\u4e0aimport \u6a21\u5757\u540d<\/code>\uff0c\u5373\u53ef\u4f7f\u7528\u8be5\u6a21\u5757\u4e2d\u7684\u529f\u80fd\u3002\u4f8b\u5982\uff0c\u82e5\u8981\u5bfc\u5165\u6807\u51c6\u5e93\u4e2d\u7684math<\/code>\u6a21\u5757\uff0c\u53ef\u4ee5\u8fd9\u6837\u5199\uff1aimport math<\/code>\u3002\u4e4b\u540e\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528math<\/code>\u6a21\u5757\u4e2d\u7684\u51fd\u6570\uff0c\u5982math.sqrt(4)<\/code>\u6765\u8ba1\u7b974\u7684\u5e73\u65b9\u6839\u3002<\/p>\n
Python3\u662f\u5426\u652f\u6301\u4ece\u6a21\u5757\u4e2d\u5bfc\u5165\u7279\u5b9a\u51fd\u6570\u6216\u7c7b\uff1f<\/strong>
\u786e\u5b9e\uff0cPython3\u5141\u8bb8\u4ece\u6a21\u5757\u4e2d\u5bfc\u5165\u7279\u5b9a\u7684\u51fd\u6570\u6216\u7c7b\uff0c\u8fd9\u6837\u53ef\u4ee5\u51cf\u5c11\u547d\u540d\u7a7a\u95f4\u7684\u5360\u7528\u3002\u4f7f\u7528from \u6a21\u5757\u540d import \u51fd\u6570\u540d<\/code>\u7684\u683c\u5f0f\u5373\u53ef\u3002\u4f8b\u5982\uff0c\u82e5\u8981\u4ecemath<\/code>\u6a21\u5757\u4e2d\u5bfc\u5165sqrt<\/code>\u51fd\u6570\uff0c\u53ef\u4ee5\u5199\u6210from math import sqrt<\/code>\u3002\u8fd9\u6837\u5c31\u53ef\u4ee5\u76f4\u63a5\u8c03\u7528sqrt(4)<\/code>\u800c\u65e0\u9700\u524d\u7f00\u3002<\/p>\n
\u5728\u5bfc\u5165\u6a21\u5757\u65f6\uff0c\u5982\u4f55\u5904\u7406\u6a21\u5757\u672a\u627e\u5230\u7684\u9519\u8bef\uff1f<\/strong>
\u5f53\u5c1d\u8bd5\u5bfc\u5165\u4e00\u4e2a\u4e0d\u5b58\u5728\u7684\u6a21\u5757\u65f6\uff0c\u4f1a\u51fa\u73b0ModuleNotFoundError<\/code>\u9519\u8bef\u3002\u4e3a\u4e86\u5904\u7406\u8fd9\u4e2a\u95ee\u9898\uff0c\u53ef\u4ee5\u4f7f\u7528try...except<\/code>\u7ed3\u6784\u6765\u6355\u83b7\u9519\u8bef\u3002\u4f8b\u5982\uff1a  <\/p>\n
try:\n    import mymodule\nexcept ModuleNotFoundError:\n    print("\u6a21\u5757\u672a\u627e\u5230\uff0c\u8bf7\u786e\u4fdd\u6a21\u5757\u540d\u6b63\u786e\u6216\u5df2\u5b89\u88c5\u3002")\n<\/code><\/pre>\n
\u8fd9\u79cd\u65b9\u5f0f\u53ef\u4ee5\u786e\u4fdd\u7a0b\u5e8f\u5728\u6a21\u5757\u672a\u627e\u5230\u7684\u60c5\u51b5\u4e0b\u4e0d\u4f1a\u5d29\u6e83\uff0c\u5e76\u80fd\u7ed9\u51fa\u6709\u7528\u7684\u63d0\u793a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python 3\u4e2d\uff0cimport\u7684\u65b9\u5f0f\u53ef\u4ee5\u901a\u8fc7\u591a\u79cd\u9014\u5f84\u5b9e\u73b0\uff0c\u5305\u62ec\u76f4\u63a5\u5bfc\u5165\u6574\u4e2a\u6a21\u5757\u3001\u4ece\u6a21\u5757\u4e2d\u5bfc\u5165\u7279\u5b9a\u7684\u51fd\u6570\u6216\u7c7b […]","protected":false},"author":3,"featured_media":973092,"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\/973086"}],"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=973086"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/973086\/revisions"}],"predecessor-version":[{"id":973094,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/973086\/revisions\/973094"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/973092"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=973086"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=973086"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=973086"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}