{"id":996199,"date":"2024-12-27T09:11:23","date_gmt":"2024-12-27T01:11:23","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/996199.html"},"modified":"2024-12-27T09:11:25","modified_gmt":"2024-12-27T01:11:25","slug":"python%e5%a6%82%e4%bd%95%e5%ae%9a%e4%b9%89string%e7%b1%bb%e5%9e%8b","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/996199.html","title":{"rendered":"python\u5982\u4f55\u5b9a\u4e49string\u7c7b\u578b"},"content":{"rendered":"<p style=\"text-align:center;\" ><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/25072523\/e5bd9111-ec34-45be-9990-2f5e8dc80ce8.webp\" alt=\"python\u5982\u4f55\u5b9a\u4e49string\u7c7b\u578b\" \/><\/p>\n<p><p> <strong>\u5728Python\u4e2d\uff0c\u5b9a\u4e49\u5b57\u7b26\u4e32\u7c7b\u578b\u53ef\u4ee5\u901a\u8fc7\u5355\u5f15\u53f7\u3001\u53cc\u5f15\u53f7\u3001\u4e09\u5f15\u53f7\u8fdb\u884c\u3002<\/strong> \u4f7f\u7528\u5355\u5f15\u53f7\u6216\u53cc\u5f15\u53f7\u5b9a\u4e49\u5b57\u7b26\u4e32\u65f6\uff0c\u5b57\u7b26\u4e32\u5185\u5bb9\u5fc5\u987b\u5728\u4e00\u884c\u5185\uff0c\u800c\u4e09\u5f15\u53f7\uff08\u5305\u62ec\u4e09\u91cd\u5355\u5f15\u53f7\u548c\u4e09\u91cd\u53cc\u5f15\u53f7\uff09\u53ef\u4ee5\u7528\u4e8e\u5b9a\u4e49\u591a\u884c\u5b57\u7b26\u4e32\u6216\u6587\u6863\u5b57\u7b26\u4e32\u3002<strong>\u4e09\u5f15\u53f7\u4e0d\u4ec5\u652f\u6301\u591a\u884c\u5b57\u7b26\u4e32\uff0c\u8fd8\u53ef\u4ee5\u5728\u5b57\u7b26\u4e32\u4e2d\u5305\u542b\u5355\u5f15\u53f7\u548c\u53cc\u5f15\u53f7\u800c\u4e0d\u9700\u8f6c\u4e49\u3002<\/strong><\/p>\n<\/p>\n<p><p>\u5b9a\u4e49\u5b57\u7b26\u4e32\u7684\u57fa\u672c\u65b9\u5f0f\uff1a<\/p>\n<\/p>\n<ol>\n<li>\n<p><strong>\u5355\u5f15\u53f7\u548c\u53cc\u5f15\u53f7\uff1a<\/strong> \u5728Python\u4e2d\uff0c\u5b57\u7b26\u4e32\u53ef\u4ee5\u7528\u5355\u5f15\u53f7\uff08&#39;\uff09\u6216\u53cc\u5f15\u53f7\uff08&quot;\uff09\u5305\u88f9\u3002\u8fd9\u4e24\u79cd\u65b9\u5f0f\u5728\u529f\u80fd\u4e0a\u662f\u5b8c\u5168\u7b49\u4ef7\u7684\uff0c\u53ef\u4ee5\u4e92\u6362\u4f7f\u7528\u3002\u4f8b\u5982\uff0c<code>str1 = &#39;Hello&#39;<\/code> \u548c <code>str2 = &quot;World&quot;<\/code> \u90fd\u662f\u5408\u6cd5\u7684\u5b57\u7b26\u4e32\u5b9a\u4e49\u65b9\u5f0f\u3002<\/p>\n<\/p>\n<\/li>\n<li>\n<p><strong>\u4e09\u5f15\u53f7\uff1a<\/strong> \u4e09\u5f15\u53f7\u7528\u4e8e\u5b9a\u4e49\u591a\u884c\u5b57\u7b26\u4e32\uff0c\u8fd9\u5728\u9700\u8981\u5305\u542b\u957f\u6587\u672c\u6216\u6587\u6863\u5b57\u7b26\u4e32\u65f6\u7279\u522b\u6709\u7528\u3002\u4e09\u5f15\u53f7\u53ef\u4ee5\u662f\u4e09\u91cd\u5355\u5f15\u53f7\uff08&#39;&#39;&#39;\uff09\u6216\u4e09\u91cd\u53cc\u5f15\u53f7\uff08&quot;&quot;&quot;\uff09\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n<\/li>\n<\/ol>\n<p><pre><code class=\"language-python\">str3 = &#39;&#39;&#39;This is a<\/p>\n<p>multi-line<\/p>\n<p>string&#39;&#39;&#39;<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u6216<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">str4 = &quot;&quot;&quot;This is another<\/p>\n<p>multi-line<\/p>\n<p>string&quot;&quot;&quot;<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u4ee5\u4e0b\u662f\u66f4\u8be6\u7ec6\u7684\u89e3\u91ca\u548c\u4f7f\u7528\u573a\u666f\uff1a<\/p>\n<\/p>\n<p><h3>\u4e00\u3001\u5355\u5f15\u53f7\u4e0e\u53cc\u5f15\u53f7<\/h3>\n<\/p>\n<p><p>\u5355\u5f15\u53f7\u548c\u53cc\u5f15\u53f7\u7684\u4f7f\u7528\u6ca1\u6709\u672c\u8d28\u7684\u533a\u522b\uff0c\u4e3b\u8981\u4f9d\u8d56\u4e8e\u5b57\u7b26\u4e32\u5185\u90e8\u662f\u5426\u5305\u542b\u76f8\u540c\u7684\u5f15\u53f7\u5b57\u7b26\u3002\u4f8b\u5982\uff0c\u5982\u679c\u5b57\u7b26\u4e32\u4e2d\u5305\u542b\u5355\u5f15\u53f7\uff0c\u53ef\u4ee5\u4f7f\u7528\u53cc\u5f15\u53f7\u5b9a\u4e49\uff0c\u53cd\u4e4b\u4ea6\u7136\u3002\u8fd9\u6837\u53ef\u4ee5\u907f\u514d\u4f7f\u7528\u8f6c\u4e49\u5b57\u7b26\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u4f7f\u7528\u53cc\u5f15\u53f7\u5b9a\u4e49\uff0c\u5185\u90e8\u5305\u542b\u5355\u5f15\u53f7<\/p>\n<p>quote = &quot;It&#39;s a beautiful day.&quot;<\/p>\n<h2><strong>\u4f7f\u7528\u5355\u5f15\u53f7\u5b9a\u4e49\uff0c\u5185\u90e8\u5305\u542b\u53cc\u5f15\u53f7<\/strong><\/h2>\n<p>speech = &#39;&quot;Python is amazing,&quot; she s<a href=\"https:\/\/docs.pingcode.com\/blog\/59162.html\" target=\"_blank\">AI<\/a>d.&#39;<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5982\u679c\u5b57\u7b26\u4e32\u4e2d\u5305\u542b\u5f15\u53f7\u5b57\u7b26\u4e0e\u5b9a\u4e49\u6240\u7528\u7684\u5f15\u53f7\u76f8\u540c\uff0c\u5219\u9700\u8981\u4f7f\u7528\u53cd\u659c\u6760\uff08\\\uff09\u8fdb\u884c\u8f6c\u4e49\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u4f7f\u7528\u5355\u5f15\u53f7\u5b9a\u4e49\uff0c\u5185\u90e8\u5305\u542b\u5355\u5f15\u53f7<\/p>\n<p>quote_with_escape = &#39;It\\&#39;s a beautiful day.&#39;<\/p>\n<h2><strong>\u4f7f\u7528\u53cc\u5f15\u53f7\u5b9a\u4e49\uff0c\u5185\u90e8\u5305\u542b\u53cc\u5f15\u53f7<\/strong><\/h2>\n<p>speech_with_escape = &quot;\\&quot;Python is amazing,\\&quot; she said.&quot;<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u4e8c\u3001\u4e09\u5f15\u53f7<\/h3>\n<\/p>\n<p><p>\u4e09\u5f15\u53f7\u7684\u4e3b\u8981\u529f\u80fd\u662f\u5b9a\u4e49\u591a\u884c\u5b57\u7b26\u4e32\u548c\u6587\u6863\u5b57\u7b26\u4e32\u3002\u591a\u884c\u5b57\u7b26\u4e32\u5728\u4ee3\u7801\u683c\u5f0f\u4e0a\u66f4\u6613\u8bfb\uff0c\u5c24\u5176\u662f\u9700\u8981\u5305\u542b\u591a\u884c\u6587\u672c\u65f6\u3002\u6587\u6863\u5b57\u7b26\u4e32\u5219\u7528\u4e8e\u4e3a\u51fd\u6570\u3001\u7c7b\u6216\u6a21\u5757\u63d0\u4f9b\u8bf4\u660e\u6587\u6863\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u591a\u884c\u5b57\u7b26\u4e32<\/p>\n<p>multi_line = &quot;&quot;&quot;This is a multi-line string.<\/p>\n<p>It can span several lines.<\/p>\n<p>And it preserves the line breaks.&quot;&quot;&quot;<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u4e09\u5f15\u53f7\u8fd8\u53ef\u4ee5\u5728\u5b57\u7b26\u4e32\u4e2d\u5305\u542b\u5355\u5f15\u53f7\u548c\u53cc\u5f15\u53f7\u800c\u4e0d\u9700\u8981\u8f6c\u4e49\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">complex_string = &quot;&quot;&quot;He said, &quot;It&#39;s a great day for Python programming.&quot;&quot;&quot;&quot;<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u4e09\u3001\u5b57\u7b26\u4e32\u64cd\u4f5c<\/h3>\n<\/p>\n<p><p>\u5b57\u7b26\u4e32\u5728Python\u4e2d\u662f\u4e0d\u53ef\u53d8\u7684\u6570\u636e\u7c7b\u578b\uff0c\u8fd9\u610f\u5473\u7740\u4e00\u65e6\u521b\u5efa\uff0c\u5b57\u7b26\u4e32\u7684\u5185\u5bb9\u5c31\u4e0d\u80fd\u88ab\u66f4\u6539\u3002Python\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u5b57\u7b26\u4e32\u64cd\u4f5c\u65b9\u6cd5\uff0c\u5305\u62ec\u4f46\u4e0d\u9650\u4e8e\uff1a<\/p>\n<\/p>\n<ul>\n<li><strong>\u62fc\u63a5<\/strong>\uff1a\u4f7f\u7528\u52a0\u53f7\uff08+\uff09\u53ef\u4ee5\u5c06\u591a\u4e2a\u5b57\u7b26\u4e32\u8fde\u63a5\u5728\u4e00\u8d77\u3002<\/li>\n<li><strong>\u91cd\u590d<\/strong>\uff1a\u4f7f\u7528\u4e58\u53f7\uff08*\uff09\u53ef\u4ee5\u5c06\u5b57\u7b26\u4e32\u91cd\u590d\u6307\u5b9a\u6b21\u6570\u3002<\/li>\n<li><strong>\u5207\u7247<\/strong>\uff1a\u53ef\u4ee5\u901a\u8fc7\u7d22\u5f15\u8bbf\u95ee\u5b57\u7b26\u4e32\u7684\u4efb\u610f\u90e8\u5206\u3002<\/li>\n<li><strong>\u683c\u5f0f\u5316<\/strong>\uff1a\u53ef\u4ee5\u4f7f\u7528f-string\u3001format\u65b9\u6cd5\u6216\u767e\u5206\u53f7\uff08%\uff09\u8fdb\u884c\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u3002<\/li>\n<\/ul>\n<p><h4>1. \u5b57\u7b26\u4e32\u62fc\u63a5<\/h4>\n<\/p>\n<p><pre><code class=\"language-python\">str1 = &quot;Hello&quot;<\/p>\n<p>str2 = &quot;World&quot;<\/p>\n<p>combined_str = str1 + &quot; &quot; + str2  # \u7ed3\u679c\u4e3a &quot;Hello World&quot;<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>2. \u5b57\u7b26\u4e32\u91cd\u590d<\/h4>\n<\/p>\n<p><pre><code class=\"language-python\">repeat_str = &quot;Python! &quot; * 3  # \u7ed3\u679c\u4e3a &quot;Python! Python! Python! &quot;<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>3. \u5b57\u7b26\u4e32\u5207\u7247<\/h4>\n<\/p>\n<p><pre><code class=\"language-python\">language = &quot;Python&quot;<\/p>\n<p>print(language[0:3])  # \u8f93\u51fa &quot;Pyt&quot;<\/p>\n<p>print(language[-1])   # \u8f93\u51fa &quot;n&quot;<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>4. \u5b57\u7b26\u4e32\u683c\u5f0f\u5316<\/h4>\n<\/p>\n<p><p><strong>f-string\uff08Python 3.6\u53ca\u4ee5\u4e0a\uff09<\/strong><\/p>\n<\/p>\n<p><pre><code class=\"language-python\">name = &quot;Alice&quot;<\/p>\n<p>age = 30<\/p>\n<p>formatted_str = f&quot;My name is {name} and I am {age} years old.&quot;<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p><strong>format\u65b9\u6cd5<\/strong><\/p>\n<\/p>\n<p><pre><code class=\"language-python\">formatted_str = &quot;My name is {} and I am {} years old.&quot;.format(name, age)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p><strong>\u767e\u5206\u53f7\u683c\u5f0f\u5316\uff08\u4e0d\u63a8\u8350\uff09<\/strong><\/p>\n<\/p>\n<p><pre><code class=\"language-python\">formatted_str = &quot;My name is %s and I am %d years old.&quot; % (name, age)<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u56db\u3001\u5b57\u7b26\u4e32\u65b9\u6cd5<\/h3>\n<\/p>\n<p><p>Python\u63d0\u4f9b\u4e86\u5927\u91cf\u7684\u5b57\u7b26\u4e32\u65b9\u6cd5\u6765\u5904\u7406\u548c\u64cd\u4f5c\u5b57\u7b26\u4e32\uff0c\u8fd9\u4e9b\u65b9\u6cd5\u5305\u62ec\u4f46\u4e0d\u9650\u4e8e\uff1a<\/p>\n<\/p>\n<ul>\n<li><strong>str.lower()<\/strong>\uff1a\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5c0f\u5199\u3002<\/li>\n<li><strong>str.upper()<\/strong>\uff1a\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5927\u5199\u3002<\/li>\n<li><strong>str.strip()<\/strong>\uff1a\u79fb\u9664\u4e24\u7aef\u7684\u7a7a\u767d\u5b57\u7b26\u3002<\/li>\n<li><strong>str.find(sub)<\/strong>\uff1a\u67e5\u627e\u5b50\u5b57\u7b26\u4e32sub\u5728\u5b57\u7b26\u4e32\u4e2d\u7684\u4f4d\u7f6e\u3002<\/li>\n<li><strong>str.replace(old, new)<\/strong>\uff1a\u5c06\u5b57\u7b26\u4e32\u4e2d\u7684old\u5b50\u5b57\u7b26\u4e32\u66ff\u6362\u4e3anew\u3002<\/li>\n<\/ul>\n<p><pre><code class=\"language-python\">sample_str = &quot;   Hello, Python!   &quot;<\/p>\n<h2><strong>\u8f6c\u6362\u4e3a\u5c0f\u5199<\/strong><\/h2>\n<p>print(sample_str.lower())  # \u8f93\u51fa &quot;   hello, python!   &quot;<\/p>\n<h2><strong>\u8f6c\u6362\u4e3a\u5927\u5199<\/strong><\/h2>\n<p>print(sample_str.upper())  # \u8f93\u51fa &quot;   HELLO, PYTHON!   &quot;<\/p>\n<h2><strong>\u53bb\u9664\u4e24\u7aef\u7a7a\u767d<\/strong><\/h2>\n<p>print(sample_str.strip())  # \u8f93\u51fa &quot;Hello, Python!&quot;<\/p>\n<h2><strong>\u67e5\u627e\u5b50\u5b57\u7b26\u4e32<\/strong><\/h2>\n<p>print(sample_str.find(&quot;Python&quot;))  # \u8f93\u51fa 8<\/p>\n<h2><strong>\u66ff\u6362\u5b50\u5b57\u7b26\u4e32<\/strong><\/h2>\n<p>print(sample_str.replace(&quot;Python&quot;, &quot;World&quot;))  # \u8f93\u51fa &quot;   Hello, World!   &quot;<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u4e94\u3001\u5b57\u7b26\u4e32\u4e0d\u53ef\u53d8\u6027<\/h3>\n<\/p>\n<p><p>\u5728Python\u4e2d\uff0c\u5b57\u7b26\u4e32\u662f\u4e0d\u53ef\u53d8\u7684\uff0c\u8fd9\u610f\u5473\u7740\u5f53\u6211\u4eec\u5bf9\u5b57\u7b26\u4e32\u8fdb\u884c\u4efb\u4f55\u64cd\u4f5c\u65f6\uff0c\u5b9e\u9645\u4e0a\u662f\u521b\u5efa\u4e86\u4e00\u4e2a\u65b0\u7684\u5b57\u7b26\u4e32\u5bf9\u8c61\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">original = &quot;Python&quot;<\/p>\n<p>modified = original + &quot; is fun&quot;<\/p>\n<p>print(original)  # \u8f93\u51fa &quot;Python&quot;<\/p>\n<p>print(modified)  # \u8f93\u51fa &quot;Python is fun&quot;<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u5728\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\uff0c<code>original<\/code>\u5b57\u7b26\u4e32\u4fdd\u6301\u4e0d\u53d8\uff0c\u800c<code>modified<\/code>\u662f\u4e00\u4e2a\u65b0\u7684\u5b57\u7b26\u4e32\u5bf9\u8c61\u3002<\/p>\n<\/p>\n<p><h3>\u516d\u3001\u7f16\u7801\u4e0e\u89e3\u7801<\/h3>\n<\/p>\n<p><p>\u5728\u5904\u7406\u4e0d\u540c\u8bed\u8a00\u7684\u6587\u672c\u65f6\uff0c\u7406\u89e3\u5b57\u7b26\u4e32\u7684\u7f16\u7801\u975e\u5e38\u91cd\u8981\u3002Python\u7684\u5b57\u7b26\u4e32\u9ed8\u8ba4\u4f7f\u7528Unicode\u7f16\u7801\uff0c\u8fd9\u4f7f\u5f97Python\u80fd\u591f\u5904\u7406\u51e0\u4e4e\u6240\u6709\u8bed\u8a00\u7684\u6587\u672c\u3002\u5bf9\u4e8e\u975eASCII\u5b57\u7b26\u7684\u5904\u7406\uff0c\u7f16\u7801\uff08encode\uff09\u548c\u89e3\u7801\uff08decode\uff09\u662f\u5fc5\u8981\u7684\u3002<\/p>\n<\/p>\n<p><h4>1. \u7f16\u7801<\/h4>\n<\/p>\n<p><p>\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5b57\u8282\u5e8f\u5217\uff08bytes\uff09\uff0c\u5e38\u7528\u4e8e\u7f51\u7edc\u4f20\u8f93\u6216\u6587\u4ef6\u5199\u5165\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">unicode_str = &quot;\u4f60\u597d&quot;<\/p>\n<p>bytes_str = unicode_str.encode(&#39;utf-8&#39;)  # \u4f7f\u7528UTF-8\u7f16\u7801<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>2. \u89e3\u7801<\/h4>\n<\/p>\n<p><p>\u5c06\u5b57\u8282\u5e8f\u5217\uff08bytes\uff09\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">decoded_str = bytes_str.decode(&#39;utf-8&#39;)  # \u4f7f\u7528UTF-8\u89e3\u7801<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h3>\u4e03\u3001\u5b57\u7b26\u4e32\u7684\u5e38\u89c1\u5e94\u7528\u573a\u666f<\/h3>\n<\/p>\n<p><p>\u5b57\u7b26\u4e32\u662fPython\u4e2d\u6700\u5e38\u7528\u7684\u6570\u636e\u7c7b\u578b\u4e4b\u4e00\uff0c\u5e7f\u6cdb\u5e94\u7528\u4e8e\u6570\u636e\u5904\u7406\u3001\u6587\u4ef6\u64cd\u4f5c\u3001\u7f51\u7edc\u7f16\u7a0b\u7b49\u9886\u57df\u3002<\/p>\n<\/p>\n<p><h4>1. \u6570\u636e\u5904\u7406<\/h4>\n<\/p>\n<p><p>\u5728\u6570\u636e\u5904\u7406\u4e2d\uff0c\u5b57\u7b26\u4e32\u5e38\u7528\u4e8e\u89e3\u6790\u548c\u683c\u5f0f\u5316\u6587\u672c\u6570\u636e\u3002\u4f8b\u5982\uff0c\u4eceCSV\u6587\u4ef6\u4e2d\u8bfb\u53d6\u6570\u636e\u65f6\uff0c\u901a\u5e38\u4f1a\u5bf9\u5b57\u7b26\u4e32\u8fdb\u884c\u5206\u5272\u548c\u63d0\u53d6\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\">csv_line = &quot;Alice,30,Engineer&quot;<\/p>\n<p>data = csv_line.split(&quot;,&quot;)  # \u5206\u5272\u5b57\u7b26\u4e32<\/p>\n<p>name, age, occupation = data<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>2. \u6587\u4ef6\u64cd\u4f5c<\/h4>\n<\/p>\n<p><p>\u5b57\u7b26\u4e32\u5728\u6587\u4ef6\u64cd\u4f5c\u4e2d\u7528\u4e8e\u8bfb\u53d6\u548c\u5199\u5165\u6587\u672c\u6587\u4ef6\u3002<\/p>\n<\/p>\n<p><pre><code class=\"language-python\"># \u5199\u5165\u6587\u4ef6<\/p>\n<p>with open(&quot;example.txt&quot;, &quot;w&quot;) as file:<\/p>\n<p>    file.write(&quot;Hello, World!&quot;)<\/p>\n<h2><strong>\u8bfb\u53d6\u6587\u4ef6<\/strong><\/h2>\n<p>with open(&quot;example.txt&quot;, &quot;r&quot;) as file:<\/p>\n<p>    content = file.read()<\/p>\n<p>    print(content)  # \u8f93\u51fa &quot;Hello, World!&quot;<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><h4>3. \u7f51\u7edc\u7f16\u7a0b<\/h4>\n<\/p>\n<p><p>\u5728\u7f51\u7edc\u7f16\u7a0b\u4e2d\uff0c\u5b57\u7b26\u4e32\u7528\u4e8e\u6784\u5efa\u548c\u89e3\u6790\u534f\u8bae\u4fe1\u606f\u3002\u4f8b\u5982\uff0cHTTP\u8bf7\u6c42\u548c\u54cd\u5e94\u90fd\u4ee5\u6587\u672c\u5f62\u5f0f\u4f20\u8f93\uff0c\u901a\u5e38\u9700\u8981\u5bf9\u5b57\u7b26\u4e32\u8fdb\u884c\u5904\u7406\u3002<\/p>\n<\/p>\n<p><h3>\u516b\u3001\u603b\u7ed3<\/h3>\n<\/p>\n<p><p>\u5b9a\u4e49\u548c\u64cd\u4f5c\u5b57\u7b26\u4e32\u662fPython\u7f16\u7a0b\u7684\u57fa\u7840\u6280\u80fd\u3002\u901a\u8fc7\u4f7f\u7528\u5355\u5f15\u53f7\u3001\u53cc\u5f15\u53f7\u548c\u4e09\u5f15\u53f7\uff0c\u5f00\u53d1\u8005\u53ef\u4ee5\u7075\u6d3b\u5730\u5b9a\u4e49\u5404\u79cd\u5b57\u7b26\u4e32\u5f62\u5f0f\u3002\u540c\u65f6\uff0cPython\u63d0\u4f9b\u4e86\u4e30\u5bcc\u7684\u5b57\u7b26\u4e32\u64cd\u4f5c\u65b9\u6cd5\uff0c\u4f7f\u5f97\u5b57\u7b26\u4e32\u5904\u7406\u53d8\u5f97\u7b80\u5355\u800c\u9ad8\u6548\u3002\u7406\u89e3\u5b57\u7b26\u4e32\u7684\u4e0d\u53ef\u53d8\u6027\u548c\u7f16\u7801\u5904\u7406\u6709\u52a9\u4e8e\u5728\u5f00\u53d1\u4e2d\u907f\u514d\u5e38\u89c1\u9519\u8bef\u5e76\u7f16\u5199\u66f4\u5065\u58ee\u7684\u4ee3\u7801\u3002\u65e0\u8bba\u662f\u6570\u636e\u5904\u7406\u3001\u6587\u4ef6\u64cd\u4f5c\u8fd8\u662f\u7f51\u7edc\u7f16\u7a0b\uff0c\u5b57\u7b26\u4e32\u90fd\u626e\u6f14\u7740\u91cd\u8981\u89d2\u8272\uff0c\u638c\u63e1\u5b57\u7b26\u4e32\u7684\u4f7f\u7528\u6280\u5de7\u5c06\u5927\u5927\u63d0\u5347Python\u7f16\u7a0b\u7684\u80fd\u529b\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p> <strong>\u5982\u4f55\u5728Python\u4e2d\u521b\u5efa\u4e00\u4e2a\u5b57\u7b26\u4e32\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0c\u521b\u5efa\u5b57\u7b26\u4e32\u975e\u5e38\u7b80\u5355\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528\u5355\u5f15\u53f7\uff08&#39;\uff09\u6216\u53cc\u5f15\u53f7\uff08&quot;\uff09\u6765\u5b9a\u4e49\u5b57\u7b26\u4e32\u3002\u4f8b\u5982\uff0c<code>my_string = &#39;Hello, World!&#39;<\/code> \u6216 <code>my_string = &quot;Hello, World!&quot;<\/code> \u90fd\u662f\u6709\u6548\u7684\u5b57\u7b26\u4e32\u5b9a\u4e49\u65b9\u5f0f\u3002\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0c\u5b57\u7b26\u4e32\u53ef\u4ee5\u5305\u542b\u5b57\u6bcd\u3001\u6570\u5b57\u548c\u7b26\u53f7\u3002<\/p>\n<p><strong>Python\u4e2d\u5b57\u7b26\u4e32\u7684\u5e38\u7528\u64cd\u4f5c\u6709\u54ea\u4e9b\uff1f<\/strong><br \/>Python\u63d0\u4f9b\u4e86\u8bb8\u591a\u65b9\u6cd5\u6765\u64cd\u4f5c\u5b57\u7b26\u4e32\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528<code>len()<\/code>\u51fd\u6570\u83b7\u53d6\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\uff0c\u4f7f\u7528<code>str.lower()<\/code>\u548c<code>str.upper()<\/code>\u65b9\u6cd5\u6765\u8f6c\u6362\u5927\u5c0f\u5199\uff0c\u4f7f\u7528<code>str.split()<\/code>\u5c06\u5b57\u7b26\u4e32\u5206\u5272\u4e3a\u5217\u8868\uff0c\u6216\u4f7f\u7528<code>str.replace(old, new)<\/code>\u6765\u66ff\u6362\u5b57\u7b26\u4e32\u4e2d\u7684\u7279\u5b9a\u90e8\u5206\u3002\u8fd9\u4e9b\u64cd\u4f5c\u4f7f\u5f97\u5904\u7406\u6587\u672c\u6570\u636e\u53d8\u5f97\u66f4\u52a0\u7075\u6d3b\u548c\u9ad8\u6548\u3002<\/p>\n<p><strong>\u5982\u4f55\u5728Python\u4e2d\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\uff1f<\/strong><br \/>\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u591a\u79cd\u65b9\u5f0f\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u3002\u6700\u5e38\u89c1\u7684\u65b9\u6cd5\u662f\u4f7f\u7528<code>f-string<\/code>\uff0c\u4f8b\u5982 <code>name = &quot;Alice&quot;; greeting = f&quot;Hello, {name}!&quot;<\/code>\u3002\u6b64\u5916\uff0c\u4f60\u8fd8\u53ef\u4ee5\u4f7f\u7528<code>str.format()<\/code>\u65b9\u6cd5\uff0c\u5982 <code>greeting = &quot;Hello, {}!&quot;.format(name)<\/code>\u3002\u8fd9\u79cd\u7075\u6d3b\u6027\u4f7f\u5f97\u5728\u8f93\u51fa\u4fe1\u606f\u65f6\uff0c\u53ef\u4ee5\u8f7b\u677e\u63d2\u5165\u53d8\u91cf\u7684\u503c\uff0c\u63d0\u5347\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u6613\u7528\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\uff0c\u5b9a\u4e49\u5b57\u7b26\u4e32\u7c7b\u578b\u53ef\u4ee5\u901a\u8fc7\u5355\u5f15\u53f7\u3001\u53cc\u5f15\u53f7\u3001\u4e09\u5f15\u53f7\u8fdb\u884c\u3002 \u4f7f\u7528\u5355\u5f15\u53f7\u6216\u53cc\u5f15\u53f7\u5b9a\u4e49\u5b57\u7b26\u4e32\u65f6\uff0c\u5b57\u7b26\u4e32\u5185 [&hellip;]","protected":false},"author":3,"featured_media":996208,"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\/996199"}],"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=996199"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/996199\/revisions"}],"predecessor-version":[{"id":996209,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/996199\/revisions\/996209"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/996208"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=996199"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=996199"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=996199"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}