{"id":1041042,"date":"2024-12-31T12:45:58","date_gmt":"2024-12-31T04:45:58","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1041042.html"},"modified":"2024-12-31T12:46:01","modified_gmt":"2024-12-31T04:46:01","slug":"python%e4%b8%ad%e5%a6%82%e4%bd%95%e5%87%8f%e5%b0%91%e5%ad%97%e7%ac%a6%e4%b8%b2%e9%95%bf%e5%ba%a6","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1041042.html","title":{"rendered":"python\u4e2d\u5982\u4f55\u51cf\u5c11\u5b57\u7b26\u4e32\u957f\u5ea6"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-docs.pingcode.com\/wp-content\/uploads\/2024\/12\/7e365551-e582-450b-9afd-95f60071fcb1.webp?x-oss-process=image\/auto-orient,1\/format,webp\" alt=\"python\u4e2d\u5982\u4f55\u51cf\u5c11\u5b57\u7b26\u4e32\u957f\u5ea6\" \/><\/p>\n<p><p> <strong>\u5728Python\u4e2d\u51cf\u5c11\u5b57\u7b26\u4e32\u957f\u5ea6\u7684\u65b9\u6cd5\u6709\uff1a\u88c1\u526a\u5b57\u7b26\u4e32\u3001\u4f7f\u7528\u5b57\u7b26\u4e32\u5207\u7247\u3001\u6b63\u5219\u8868\u8fbe\u5f0f\u66ff\u6362\u3001\u538b\u7f29\u5b57\u7b26\u4e32\u3001\u79fb\u9664\u4e0d\u5fc5\u8981\u7684\u7a7a\u767d\u5b57\u7b26\u7b49\u3002<\/strong> \u5176\u4e2d\uff0c\u4f7f\u7528\u5b57\u7b26\u4e32\u5207\u7247\u662f\u6700\u5e38\u89c1\u548c\u7b80\u4fbf\u7684\u65b9\u6cd5\u3002\u901a\u8fc7\u5207\u7247\uff0c\u6211\u4eec\u53ef\u4ee5\u8f7b\u677e\u83b7\u53d6\u5b57\u7b26\u4e32\u7684\u5b50\u5b57\u7b26\u4e32\uff0c\u4ece\u800c\u51cf\u5c11\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\u3002<\/p>\n<\/p>\n<p><p>\u4f7f\u7528\u5b57\u7b26\u4e32\u5207\u7247\u7684\u65b9\u6cd5\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">string = &quot;Hello, World!&quot;<\/p>\n<p>shortened_string = string[:5]  # \u83b7\u53d6\u524d5\u4e2a\u5b57\u7b26<\/p>\n<p>print(shortened_string)  # \u8f93\u51fa: Hello<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5b57\u7b26\u4e32\u5207\u7247\u53ef\u4ee5\u901a\u8fc7\u6307\u5b9a\u8d77\u59cb\u548c\u7ed3\u675f\u4f4d\u7f6e\uff0c\u83b7\u53d6\u5b50\u5b57\u7b26\u4e32\u3002Python\u652f\u6301\u8d1f\u7d22\u5f15\uff0c\u53ef\u4ee5\u65b9\u4fbf\u5730\u4ece\u5b57\u7b26\u4e32\u672b\u5c3e\u5f00\u59cb\u8ba1\u6570\uff0c\u7075\u6d3b\u6027\u975e\u5e38\u9ad8\u3002<\/p>\n<\/p>\n<p><p>\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5728Python\u4e2d\u51cf\u5c11\u5b57\u7b26\u4e32\u957f\u5ea6\u7684\u5404\u79cd\u65b9\u6cd5\u3002<\/p>\n<\/p>\n<h2><strong>\u4e00\u3001\u88c1\u526a\u5b57\u7b26\u4e32<\/strong><\/h2>\n<p><p>\u88c1\u526a\u5b57\u7b26\u4e32\u662f\u6307\u901a\u8fc7\u5220\u9664\u5b57\u7b26\u4e32\u7684\u67d0\u4e9b\u90e8\u5206\u6765\u51cf\u5c11\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\u3002\u5e38\u7528\u7684\u65b9\u6cd5\u5305\u62ec\u5220\u9664\u524d\u7f00\u3001\u540e\u7f00\u4ee5\u53ca\u4e2d\u95f4\u90e8\u5206\u7684\u5185\u5bb9\u3002<\/p>\n<\/p>\n<p><h2>1\u3001\u5220\u9664\u524d\u7f00<\/h2>\n<\/p>\n<p><p>\u5220\u9664\u524d\u7f00\u53ef\u4ee5\u4f7f\u7528\u5b57\u7b26\u4e32\u7684<code>lstrip()<\/code>\u65b9\u6cd5\uff0c\u5b83\u4f1a\u5220\u9664\u5b57\u7b26\u4e32\u5f00\u5934\u7684\u6307\u5b9a\u5b57\u7b26\uff0c\u9ed8\u8ba4\u5220\u9664\u7a7a\u767d\u5b57\u7b26\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">string = &quot;  Hello, World!&quot;<\/p>\n<p>shortened_string = string.lstrip()<\/p>\n<p>print(shortened_string)  # \u8f93\u51fa: &quot;Hello, World!&quot;<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h2>2\u3001\u5220\u9664\u540e\u7f00<\/h2>\n<\/p>\n<p><p>\u5220\u9664\u540e\u7f00\u53ef\u4ee5\u4f7f\u7528\u5b57\u7b26\u4e32\u7684<code>rstrip()<\/code>\u65b9\u6cd5\uff0c\u5b83\u4f1a\u5220\u9664\u5b57\u7b26\u4e32\u7ed3\u5c3e\u7684\u6307\u5b9a\u5b57\u7b26\uff0c\u9ed8\u8ba4\u5220\u9664\u7a7a\u767d\u5b57\u7b26\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">string = &quot;Hello, World!   &quot;<\/p>\n<p>shortened_string = string.rstrip()<\/p>\n<p>print(shortened_string)  # \u8f93\u51fa: &quot;Hello, World!&quot;<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h2>3\u3001\u5220\u9664\u524d\u540e\u7a7a\u767d\u5b57\u7b26<\/h2>\n<\/p>\n<p><p>\u5220\u9664\u524d\u540e\u7a7a\u767d\u5b57\u7b26\u53ef\u4ee5\u4f7f\u7528\u5b57\u7b26\u4e32\u7684<code>strip()<\/code>\u65b9\u6cd5\uff0c\u5b83\u4f1a\u5220\u9664\u5b57\u7b26\u4e32\u4e24\u7aef\u7684\u7a7a\u767d\u5b57\u7b26\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">string = &quot;   Hello, World!   &quot;<\/p>\n<p>shortened_string = string.strip()<\/p>\n<p>print(shortened_string)  # \u8f93\u51fa: &quot;Hello, World!&quot;<\/p>\n<p><\/code><\/pre>\n<\/p>\n<h2><strong>\u4e8c\u3001\u4f7f\u7528\u5b57\u7b26\u4e32\u5207\u7247<\/strong><\/h2>\n<p><p>\u5b57\u7b26\u4e32\u5207\u7247\u662f\u901a\u8fc7\u7d22\u5f15\u6307\u5b9a\u5b57\u7b26\u4e32\u7684\u8d77\u59cb\u548c\u7ed3\u675f\u4f4d\u7f6e\uff0c\u83b7\u53d6\u5b50\u5b57\u7b26\u4e32\u7684\u65b9\u6cd5\u3002\u5b57\u7b26\u4e32\u5207\u7247\u975e\u5e38\u7075\u6d3b\uff0c\u53ef\u4ee5\u6839\u636e\u9700\u8981\u83b7\u53d6\u5b57\u7b26\u4e32\u7684\u4efb\u610f\u90e8\u5206\u3002<\/p>\n<\/p>\n<p><h2>1\u3001\u83b7\u53d6\u524dn\u4e2a\u5b57\u7b26<\/h2>\n<\/p>\n<p><p>\u901a\u8fc7\u5207\u7247\u83b7\u53d6\u5b57\u7b26\u4e32\u7684\u524dn\u4e2a\u5b57\u7b26\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">string = &quot;Hello, World!&quot;<\/p>\n<p>shortened_string = string[:5]<\/p>\n<p>print(shortened_string)  # \u8f93\u51fa: &quot;Hello&quot;<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h2>2\u3001\u83b7\u53d6\u540en\u4e2a\u5b57\u7b26<\/h2>\n<\/p>\n<p><p>\u901a\u8fc7\u5207\u7247\u83b7\u53d6\u5b57\u7b26\u4e32\u7684\u540en\u4e2a\u5b57\u7b26\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">string = &quot;Hello, World!&quot;<\/p>\n<p>shortened_string = string[-5:]<\/p>\n<p>print(shortened_string)  # \u8f93\u51fa: &quot;orld!&quot;<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h2>3\u3001\u83b7\u53d6\u4e2d\u95f4\u90e8\u5206\u5b57\u7b26<\/h2>\n<\/p>\n<p><p>\u901a\u8fc7\u5207\u7247\u83b7\u53d6\u5b57\u7b26\u4e32\u7684\u4e2d\u95f4\u90e8\u5206\u5b57\u7b26\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">string = &quot;Hello, World!&quot;<\/p>\n<p>shortened_string = string[7:12]<\/p>\n<p>print(shortened_string)  # \u8f93\u51fa: &quot;World&quot;<\/p>\n<p><\/code><\/pre>\n<\/p>\n<h2><strong>\u4e09\u3001\u6b63\u5219\u8868\u8fbe\u5f0f\u66ff\u6362<\/strong><\/h2>\n<p><p>\u6b63\u5219\u8868\u8fbe\u5f0f\u53ef\u4ee5\u7528\u6765\u5339\u914d\u548c\u66ff\u6362\u5b57\u7b26\u4e32\u4e2d\u7684\u6a21\u5f0f\uff0c\u4ece\u800c\u51cf\u5c11\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\u3002Python\u4e2d\u7684<code>re<\/code>\u6a21\u5757\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u529f\u80fd\u3002<\/p>\n<\/p>\n<p><h2>1\u3001\u5220\u9664\u6240\u6709\u7a7a\u767d\u5b57\u7b26<\/h2>\n<\/p>\n<p><p>\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u5220\u9664\u5b57\u7b26\u4e32\u4e2d\u7684\u6240\u6709\u7a7a\u767d\u5b57\u7b26\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import re<\/p>\n<p>string = &quot;Hello, World!&quot;<\/p>\n<p>shortened_string = re.sub(r&#39;\\s+&#39;, &#39;&#39;, string)<\/p>\n<p>print(shortened_string)  # \u8f93\u51fa: &quot;Hello,World!&quot;<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h2>2\u3001\u5220\u9664\u7279\u5b9a\u6a21\u5f0f<\/h2>\n<\/p>\n<p><p>\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u5220\u9664\u5b57\u7b26\u4e32\u4e2d\u7684\u7279\u5b9a\u6a21\u5f0f\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">import re<\/p>\n<p>string = &quot;Hello, 123 World!&quot;<\/p>\n<p>shortened_string = re.sub(r&#39;\\d+&#39;, &#39;&#39;, string)<\/p>\n<p>print(shortened_string)  # \u8f93\u51fa: &quot;Hello,  World!&quot;<\/p>\n<p><\/code><\/pre>\n<\/p>\n<h2><strong>\u56db\u3001\u538b\u7f29\u5b57\u7b26\u4e32<\/strong><\/h2>\n<p><p>\u5b57\u7b26\u4e32\u538b\u7f29\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e9b\u7b97\u6cd5\u6765\u51cf\u5c11\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\uff0c\u4f8b\u5982\u4f7f\u7528Huffman\u7f16\u7801\u6216RLE\uff08\u8fd0\u884c\u957f\u5ea6\u7f16\u7801\uff09\u3002<\/p>\n<\/p>\n<p><h2>1\u3001Huffman\u7f16\u7801<\/h2>\n<\/p>\n<p><p>Huffman\u7f16\u7801\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u65e0\u635f\u538b\u7f29\u7b97\u6cd5\uff0c\u53ef\u4ee5\u7528\u6765\u538b\u7f29\u5b57\u7b26\u4e32\u3002\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684Huffman\u7f16\u7801\u793a\u4f8b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">from collections import Counter, Heapq<\/p>\n<p>class Node:<\/p>\n<p>    def __init__(self, freq, char=None):<\/p>\n<p>        self.freq = freq<\/p>\n<p>        self.char = char<\/p>\n<p>        self.left = None<\/p>\n<p>        self.right = None<\/p>\n<p>    def __lt__(self, other):<\/p>\n<p>        return self.freq &lt; other.freq<\/p>\n<p>def build_huffman_tree(s):<\/p>\n<p>    freq = Counter(s)<\/p>\n<p>    heap = [Node(freq[char], char) for char in freq]<\/p>\n<p>    heapq.heapify(heap)<\/p>\n<p>    while len(heap) &gt; 1:<\/p>\n<p>        left = heapq.heappop(heap)<\/p>\n<p>        right = heapq.heappop(heap)<\/p>\n<p>        parent = Node(left.freq + right.freq)<\/p>\n<p>        parent.left = left<\/p>\n<p>        parent.right = right<\/p>\n<p>        heapq.heappush(heap, parent)<\/p>\n<p>    return heap[0]<\/p>\n<p>def build_huffman_codes(node, code=&#39;&#39;, codes={}):<\/p>\n<p>    if node.char:<\/p>\n<p>        codes[node.char] = code<\/p>\n<p>    else:<\/p>\n<p>        build_huffman_codes(node.left, code + &#39;0&#39;, codes)<\/p>\n<p>        build_huffman_codes(node.right, code + &#39;1&#39;, codes)<\/p>\n<p>    return codes<\/p>\n<p>def huffman_encode(s):<\/p>\n<p>    root = build_huffman_tree(s)<\/p>\n<p>    codes = build_huffman_codes(root)<\/p>\n<p>    return &#39;&#39;.join(codes[char] for char in s), codes<\/p>\n<p>string = &quot;Hello, World!&quot;<\/p>\n<p>encoded_string, huffman_codes = huffman_encode(string)<\/p>\n<p>print(encoded_string)  # \u8f93\u51fa: \u538b\u7f29\u540e\u7684\u4e8c\u8fdb\u5236\u5b57\u7b26\u4e32<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h2>2\u3001RLE\uff08\u8fd0\u884c\u957f\u5ea6\u7f16\u7801\uff09<\/h2>\n<\/p>\n<p><p>RLE\u662f\u4e00\u79cd\u7b80\u5355\u7684\u65e0\u635f\u538b\u7f29\u7b97\u6cd5\uff0c\u901a\u8fc7\u8bb0\u5f55\u5b57\u7b26\u53ca\u5176\u91cd\u590d\u6b21\u6570\u6765\u538b\u7f29\u5b57\u7b26\u4e32\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">def rle_encode(s):<\/p>\n<p>    encoding = &#39;&#39;<\/p>\n<p>    i = 0<\/p>\n<p>    while i &lt; len(s):<\/p>\n<p>        count = 1<\/p>\n<p>        while i + 1 &lt; len(s) and s[i] == s[i + 1]:<\/p>\n<p>            i += 1<\/p>\n<p>            count += 1<\/p>\n<p>        encoding += s[i] + str(count)<\/p>\n<p>        i += 1<\/p>\n<p>    return encoding<\/p>\n<p>string = &quot;aaabbbcc&quot;<\/p>\n<p>encoded_string = rle_encode(string)<\/p>\n<p>print(encoded_string)  # \u8f93\u51fa: &quot;a3b3c2&quot;<\/p>\n<p><\/code><\/pre>\n<\/p>\n<h2><strong>\u4e94\u3001\u79fb\u9664\u4e0d\u5fc5\u8981\u7684\u7a7a\u767d\u5b57\u7b26<\/strong><\/h2>\n<p><p>\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u5b57\u7b26\u4e32\u4e2d\u53ef\u80fd\u5305\u542b\u5f88\u591a\u4e0d\u5fc5\u8981\u7684\u7a7a\u767d\u5b57\u7b26\uff0c\u901a\u8fc7\u79fb\u9664\u8fd9\u4e9b\u7a7a\u767d\u5b57\u7b26\u53ef\u4ee5\u6709\u6548\u51cf\u5c11\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\u3002<\/p>\n<\/p>\n<p><h2>1\u3001\u79fb\u9664\u591a\u4f59\u7a7a\u683c<\/h2>\n<\/p>\n<p><p>\u4f7f\u7528\u5b57\u7b26\u4e32\u7684<code>split()<\/code>\u548c<code>join()<\/code>\u65b9\u6cd5\uff0c\u53ef\u4ee5\u79fb\u9664\u5b57\u7b26\u4e32\u4e2d\u7684\u591a\u4f59\u7a7a\u683c\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">string = &quot;Hello,    World!  How    are you?&quot;<\/p>\n<p>shortened_string = &#39; &#39;.join(string.split())<\/p>\n<p>print(shortened_string)  # \u8f93\u51fa: &quot;Hello, World! How are you?&quot;<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h2>2\u3001\u79fb\u9664\u6362\u884c\u7b26<\/h2>\n<\/p>\n<p><p>\u4f7f\u7528\u5b57\u7b26\u4e32\u7684<code>replace()<\/code>\u65b9\u6cd5\uff0c\u53ef\u4ee5\u79fb\u9664\u5b57\u7b26\u4e32\u4e2d\u7684\u6362\u884c\u7b26\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">string = &quot;Hello,\\nWorld!\\nHow\\nare\\nyou?&quot;<\/p>\n<p>shortened_string = string.replace(&#39;\\n&#39;, &#39; &#39;)<\/p>\n<p>print(shortened_string)  # \u8f93\u51fa: &quot;Hello, World! How are you?&quot;<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u901a\u8fc7\u4ee5\u4e0a\u51e0\u79cd\u65b9\u6cd5\uff0c\u6211\u4eec\u53ef\u4ee5\u5728Python\u4e2d\u6709\u6548\u5730\u51cf\u5c11\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\u3002\u65e0\u8bba\u662f\u901a\u8fc7\u88c1\u526a\u3001\u5207\u7247\u3001\u6b63\u5219\u8868\u8fbe\u5f0f\u66ff\u6362\uff0c\u8fd8\u662f\u901a\u8fc7\u538b\u7f29\u548c\u79fb\u9664\u4e0d\u5fc5\u8981\u7684\u7a7a\u767d\u5b57\u7b26\uff0c\u90fd\u53ef\u4ee5\u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\u6765\u5b9e\u73b0\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5728Python\u4e2d\u622a\u65ad\u5b57\u7b26\u4e32\u4ee5\u51cf\u5c11\u5176\u957f\u5ea6\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u5207\u7247\u64cd\u4f5c\u6765\u622a\u65ad\u5b57\u7b26\u4e32\u3002\u901a\u8fc7\u6307\u5b9a\u5f00\u59cb\u548c\u7ed3\u675f\u7d22\u5f15\uff0c\u53ef\u4ee5\u65b9\u4fbf\u5730\u83b7\u53d6\u5b57\u7b26\u4e32\u7684\u5b50\u4e32\u3002\u4f8b\u5982\uff0c\u5982\u679c\u60f3\u5c06\u5b57\u7b26\u4e32\u201cHello, World!\u201d\u622a\u65ad\u4e3a\u524d5\u4e2a\u5b57\u7b26\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\uff1a<code>short_string = original_string[:5]<\/code>\uff0c\u8fd9\u5c06\u5f97\u5230\u201cHello\u201d\u3002<\/p>\n<p><strong>\u6709\u54ea\u4e9b\u65b9\u6cd5\u53ef\u4ee5\u5c06\u5b57\u7b26\u4e32\u538b\u7f29\u4e3a\u66f4\u77ed\u7684\u5f62\u5f0f\uff1f<\/strong><br \/>\u9664\u4e86\u76f4\u63a5\u622a\u65ad\uff0cPython\u8fd8\u63d0\u4f9b\u4e86\u591a\u79cd\u65b9\u6cd5\u6765\u538b\u7f29\u5b57\u7b26\u4e32\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528<code>str.replace()<\/code>\u65b9\u6cd5\u6765\u66ff\u6362\u5b57\u7b26\u4e32\u4e2d\u7684\u67d0\u4e9b\u90e8\u5206\uff0c\u6216\u8005\u901a\u8fc7\u6b63\u5219\u8868\u8fbe\u5f0f<code>re.sub()<\/code>\u6765\u5220\u9664\u4e0d\u5fc5\u8981\u7684\u5b57\u7b26\u3002\u6b64\u5916\uff0c\u4f7f\u7528<code>zlib<\/code>\u5e93\u53ef\u4ee5\u5bf9\u5b57\u7b26\u4e32\u8fdb\u884c\u538b\u7f29\uff0c\u4ee5\u51cf\u5c11\u5176\u5360\u7528\u7684\u7a7a\u95f4\u3002<\/p>\n<p><strong>\u5982\u4f55\u5728Python\u4e2d\u5904\u7406\u957f\u5ea6\u8d85\u8fc7\u9650\u5236\u7684\u5b57\u7b26\u4e32\uff1f<\/strong><br \/>\u5f53\u5904\u7406\u957f\u5ea6\u8d85\u8fc7\u7279\u5b9a\u9650\u5236\u7684\u5b57\u7b26\u4e32\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528\u6761\u4ef6\u5224\u65ad\u6765\u786e\u4fdd\u5b57\u7b26\u4e32\u7b26\u5408\u8981\u6c42\u3002\u53ef\u4ee5\u901a\u8fc7<code>if len(string) &gt; limit:<\/code>\u6765\u68c0\u67e5\u5b57\u7b26\u4e32\u957f\u5ea6\uff0c\u5e76\u5728\u8d85\u8fc7\u9650\u5236\u65f6\u8fdb\u884c\u622a\u65ad\u6216\u66ff\u6362\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u7ed3\u5408\u4e0a\u8ff0\u7684\u5207\u7247\u548c\u66ff\u6362\u65b9\u6cd5\uff0c\u786e\u4fdd\u5b57\u7b26\u4e32\u5728\u8f93\u51fa\u65f6\u4e0d\u4f1a\u8d85\u51fa\u9884\u5b9a\u7684\u957f\u5ea6\u9650\u5236\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\u51cf\u5c11\u5b57\u7b26\u4e32\u957f\u5ea6\u7684\u65b9\u6cd5\u6709\uff1a\u88c1\u526a\u5b57\u7b26\u4e32\u3001\u4f7f\u7528\u5b57\u7b26\u4e32\u5207\u7247\u3001\u6b63\u5219\u8868\u8fbe\u5f0f\u66ff\u6362\u3001\u538b\u7f29\u5b57\u7b26\u4e32\u3001\u79fb\u9664\u4e0d\u5fc5\u8981\u7684\u7a7a [&hellip;]","protected":false},"author":3,"featured_media":1041053,"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\/1041042"}],"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=1041042"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1041042\/revisions"}],"predecessor-version":[{"id":1041062,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1041042\/revisions\/1041062"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1041053"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1041042"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1041042"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1041042"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}