{"id":57518,"date":"2025-08-15T14:10:46","date_gmt":"2025-08-15T06:10:46","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/57518.html"},"modified":"2025-08-15T14:10:46","modified_gmt":"2025-08-15T06:10:46","slug":"python%e5%a4%8d%e5%90%88%e8%af%ad%e5%8f%a5%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/57518.html","title":{"rendered":"Python\u590d\u5408\u8bed\u53e5\u8be6\u89e3"},"content":{"rendered":"

3.6 Python\u590d\u5408\u8bed\u53e5<\/h3>\n

\u590d\u5408\u8bed\u53e5\u662f\u5305\u542b\u5176\u5b83\u8bed\u53e5(\u8bed\u53e5\u7ec4)\u7684\u8bed\u53e5；\u5b83\u4eec\u4f1a\u4ee5\u67d0\u79cd\u65b9\u5f0f\u5f71\u54cd\u6216\u63a7\u5236\u6240\u5305\u542b\u5176\u5b83\u8bed\u53e5\u7684\u6267\u884c\u3002\u901a\u5e38，\u590d\u5408\u8bed\u53e5\u4f1a\u8de8\u8d8a\u591a\u884c，\u867d\u7136\u5728\u67d0\u4e9b\u7b80\u5355\u5f62\u5f0f\u4e0b\u6574\u4e2a\u590d\u5408\u8bed\u53e5\u4e5f\u53ef\u80fd\u5305\u542b\u4e8e\u4e00\u884c\u4e4b\u5185\u3002
\nif\u3001while\u548cfor\u8bed\u53e5\u7528\u6765\u5b9e\u73b0\u4f20\u7edf\u7684\u63a7\u5236\u6d41\u7a0b\u6784\u9020\u3002try\u8bed\u53e5\u4e3a\u4e00\u7ec4\u8bed\u53e5\u6307\u5b9a\u5f02\u5e38\u5904\u7406\u548c\/\u548c\u6e05\u7406\u4ee3\u7801，\u800cwith\u8bed\u53e5\u5141\u8bb8\u5728\u4e00\u4e2a\u4ee3\u7801\u5757\u5468\u56f4\u6267\u884c\u521d\u59cb\u5316\u548c\u7ec8\u7ed3\u5316\u4ee3\u7801\u3002
\n\u51fd\u6570\u548c\u7c7b\u5b9a\u4e49\u5728\u8bed\u6cd5\u4e0a\u4e5f\u5c5e\u4e8e\u590d\u5408\u8bed\u53e5\u3002
\n\u4e00\u6761\u590d\u5408\u8bed\u53e5\u7531\u4e00\u4e2a\u6216\u591a\u4e2a\u5b50\u53e5\u7ec4\u6210\u3002\u4e00\u4e2a\u5b50\u53e5\u5219\u5305\u542b\u4e00\u4e2a\u53e5\u5934\u548c\u4e00\u4e2a\u53e5\u4f53\u3002\u7279\u5b9a\u590d\u5408\u8bed\u53e5\u7684\u5b50\u53e5\u5934\u90fd\u5904\u4e8e\u76f8\u540c\u7684\u7f29\u8fdb\u5c42\u7ea7\u3002
\n\u6bcf\u4e2a\u5b50\u53e5\u5934\u4ee5\u4e00\u4e2a\u4f5c\u4e3a\u552f\u4e00\u6807\u8bc6\u7684\u5173\u952e\u5b57\u5f00\u59cb\u5e76\u4ee5\u4e00\u4e2a\u5192\u53f7\u7ed3\u675f\u3002
\n\u5b50\u53e5\u4f53\u662f\u7531\u4e00\u4e2a\u5b50\u53e5\u63a7\u5236\u7684\u4e00\u7ec4\u8bed\u53e5\u3002\u5b50\u53e5\u4f53\u53ef\u4ee5\u662f\u5728\u5b50\u53e5\u5934\u7684\u5192\u53f7\u4e4b\u540e\u4e0e\u5176\u540c\u5904\u4e00\u884c\u7684\u4e00\u6761\u6216\u7531\u5206\u53f7\u5206\u9694\u7684\u591a\u6761\u7b80\u5355\u8bed\u53e5，\u6216\u8005\u4e5f\u53ef\u4ee5\u662f\u5728\u5176\u4e4b\u540e\u7f29\u8fdb\u7684\u4e00\u884c\u6216\u591a\u884c\u8bed\u53e5\u3002\u53ea\u6709\u540e\u4e00\u79cd\u5f62\u5f0f\u7684\u5b50\u53e5\u4f53\u624d\u80fd\u5305\u542b\u5d4c\u5957\u7684\u590d\u5408\u8bed\u53e5\u3002<\/p>\n

3.6.1 if \u8bed\u53e5<\/h5>\n

if \u8bed\u53e5\u7528\u4e8e\u6709\u6761\u4ef6\u5730\u6267\u884c\u3002if\u8bed\u53e5\u7684\u4e00\u822c\u8bed\u6cd5\u683c\u5f0f\u5982\u4e0b：
\nif \u6761\u4ef6\u8868\u8fbe\u5f0f:
\n\u5b50\u53e5\u4f531
\n[elif \u6761\u4ef6\u8868\u8fbe\u5f0f：
\n\u5b50\u53e5\u4f532]* # *\u53f7\u4ee3\u8868\u8be5\u5b57\u53e5\u53ef\u4ee5\u662f0\u6216\u591a\u4e2a，\u4e0b\u540c
\n[else:
\n\u5b50\u53e5\u4f533]
\nif\u8bed\u53e5\u901a\u8fc7\u5bf9\u6761\u4ef6\u8868\u8fbe\u5f0f\u8fdb\u884c\u6c42\u503c，\u5982\u679c\u4e3a\u771f\u5219\u6267\u884c\u76f8\u5e94\u7684\u5b50\u53e5\u4f53，\u5982\u679c\u5168\u90fd\u4e3a\u5047，\u53ef\u9009\u7684else\u5b50\u53e5\u4f53\u5c06\u4f1a\u88ab\u6267\u884c\u3002
\n\u6ce8\u610f：
\n1\u3001False\u3001None\u30010\u3001""\u3001()\u3001[]\u3001{}`\u90fd\u89c6\u4e3a\u5047<\/p>\n

3.6.2 while \u8bed\u53e5<\/h5>\n

while \u8bed\u53e5\u7528\u4e8e\u5728\u8868\u8fbe\u5f0f\u4fdd\u6301\u4e3a\u771f\u7684\u60c5\u51b5\u4e0b\u91cd\u590d\u5730\u6267\u884c，\u4e00\u822c\u8bed\u6cd5\u683c\u5f0f\u4e3a：
\nwhile \u6761\u4ef6\u8868\u8fbe\u5f0f:
\n\u5b50\u53e5\u4f531
\n[else:
\n\u5b50\u53e5\u4f532]
\nwhile\u8bed\u53e5\u4f1a\u91cd\u590d\u5730\u68c0\u9a8c\u8868\u8fbe\u5f0f，\u5e76\u4e14\u5982\u679c\u5176\u503c\u4e3a\u771f\u5c31\u6267\u884c\u5b50\u53e5\u4f531；\u5982\u679c\u8868\u8fbe\u5f0f\u503c\u4e3a\u5047(\u8fd9\u53ef\u80fd\u5728\u7b2c\u4e00\u6b21\u68c0\u9a8c\u65f6\u5c31\u53d1\u751f)，\u5219\u53ef\u9009\u7684else\u5b50\u53e5\u4f53\u5c06\u4f1a\u88ab\u6267\u884c\u3002
\n\u5982\u679c\u5728\u7b2c\u4e00\u4e2a\u5b50\u53e5\u4f53\u4e2d\u4f7f\u7528\u4e86break\u8bed\u53e5，\u5219\u5c06\u7ec8\u6b62\u5faa\u73af\u4e14\u4e0d\u6267\u884c else \u5b50\u53e5\u4f53\u3002
\n\u5982\u679c\u5728\u7b2c\u4e00\u4e2a\u5b50\u53e5\u4f53\u4e2d\u4f7f\u7528\u4e86continue \u8bed\u53e5，\u5219\u5728\u6267\u884c\u65f6\u5c06\u8df3\u8fc7\u5b50\u53e5\u4f53\u4e2d\u7684\u5269\u4f59\u90e8\u5206\u5e76\u8fd4\u56de\u68c0\u9a8c\u8868\u8fbe\u5f0f\u3002
\n\u793a\u4f8b：\u6c421-100\u6574\u6570\u7684\u548c<\/p>\n\n\n\n\n\n\n\n\n
b = 0<\/td>\n<\/tr>\n
s = 0<\/td>\n<\/tr>\n
while b < 100:<\/td>\n<\/tr>\n
\u00a0 \u00a0 b += 1<\/td>\n<\/tr>\n
\u00a0 \u00a0 s += b<\/td>\n<\/tr>\n
print(s)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

5050<\/p>\n

\n

\u5b9e\u4f8b：\u5224\u65ad\u67d0\u4e2a\u6570\u662f\u5426\u662f\u8d28\u6570？<\/p>\n\n\n\n\n\n\n\n\n\n\n\n
num = 87<\/td>\n<\/tr>\n
i = 2<\/td>\n<\/tr>\n
while i < num:<\/td>\n<\/tr>\n
\u00a0 \u00a0 if num % i == 0:<\/td>\n<\/tr>\n
\u00a0 \u00a0 \u00a0 \u00a0 print(f'{num} \u4e0d\u662f\u8d28\u6570')<\/td>\n<\/tr>\n
\u00a0 \u00a0 \u00a0 \u00a0 break<\/td>\n<\/tr>\n
\u00a0 \u00a0 i += 1<\/td>\n<\/tr>\n
else:<\/td>\n<\/tr>\n
\u00a0 \u00a0 print(f'{num} \u662f\u8d28\u6570')<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

87 \u4e0d\u662f\u8d28\u6570<\/p>\n

\n
3.6.3 for \u8bed\u53e5<\/h5>\n

for \u8bed\u53e5\u7528\u4e8e\u5bf9\u5e8f\u5217(\u4f8b\u5982\u5b57\u7b26\u4e32\u3001\u5143\u7ec4\u6216\u5217\u8868)\u6216\u5176\u4ed6\u53ef\u8fed\u4ee3\u5bf9\u8c61\u4e2d\u7684\u5143\u7d20\u8fdb\u884c\u8fed\u4ee3，\u4e00\u822c\u8bed\u6cd5\u683c\u5f0f\u4e3a：
\nfor \u53d8\u91cf in \u5e8f\u5217:
\n\u5b50\u53e5\u4f531
\n[else:
\n\u5b50\u53e5\u4f532]
\nfor\u8bed\u53e5\u4f1a\u6bcf\u6b21\u4ece\u5e8f\u5217\u4e2d\u62ff\u4e00\u4e2a\u5143\u7d20\u51fa\u6765\u5e76\u8d4b\u503c\u7ed9\u53d8\u91cf，\u7136\u540e\u6267\u884c\u5b50\u53e5\u4f531\u3002\u5f53\u5e8f\u5217\u4e2d\u6240\u6709\u7684\u5143\u7d20\u90fd\u83b7\u53d6\u5b8c\u6bd5\u540e，\u5219\u53ef\u9009\u7684else\u5b50\u53e5\u4f53\u5c06\u4f1a\u88ab\u6267\u884c\u3002
\n\u548cWhile\u8bed\u53e5\u4e00\u6837，\u5982\u679c\u5728\u5b50\u53e5\u4f531\u4e2d\u4f7f\u7528\u4e86break\u8bed\u53e5，\u5219\u5c06\u7ec8\u6b62\u5faa\u73af\u4e14\u4e0d\u6267\u884c else \u5b50\u53e5\u4f53\u3002
\n\u5982\u679c\u5728\u5b50\u53e5\u4f531\u4e2d\u4f7f\u7528continue \u8bed\u53e5，\u5219\u5728\u6267\u884c\u65f6\u5c06\u8df3\u8fc7\u5b50\u53e5\u4f53\u4e2d\u7684\u5269\u4f59\u90e8\u5206\u5e76\u8fd4\u56de\u68c0\u9a8c\u8868\u8fbe\u5f0f\u3002\u5982\u679c\u6b64\u65f6\u6ca1\u6709\u4e0b\u4e00\u9879，\u5219\u4f1a\u6267\u884celse\u5b50\u53e5\u4f53(\u5982\u679c\u5b58\u5728else\u5b50\u53e5\u7684\u8bdd)\u3002
\n\u793a\u4f8b<\/p>\n\n\n\n\n\n
langs = ['c', 'c++', 'python', 'java']<\/td>\n<\/tr>\n
for i in langs:<\/td>\n<\/tr>\n
\u00a0 \u00a0 print(i)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

c
\nc++
\npython
\njava<\/p>\n

\n

\u8bf4\u660e：
\n1\u3001for \u5faa\u73af\u4f1a\u5bf9\u76ee\u6807\u5217\u8868\u4e2d\u7684\u53d8\u91cf\u8fdb\u884c\u8d4b\u503c\u3002\u8fd9\u5c06\u8986\u76d6\u4e4b\u524d\u5bf9\u8fd9\u4e9b\u53d8\u91cf\u7684\u6240\u6709\u8d4b\u503c，\u5305\u62ec\u5728 for \u5faa\u73af\u4f53\u4e2d\u7684\u8d4b\u503c，\u6240\u4ee5\u6211\u4eec\u4e0d\u80fd\u901a\u8fc7\u4fee\u6539\u5faa\u73af\u53d8\u91cf\u7684\u503c\u6765\u8fbe\u5230\u4fee\u6539\u5faa\u73af\u6b21\u6570\u7684\u76ee\u7684\u3002<\/p>\n\n\n\n\n\n
for i in [1, 2, 3]:<\/td>\n<\/tr>\n
\u00a0 \u00a0 print(i)<\/td>\n<\/tr>\n
\u00a0 \u00a0 i = 5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

1
\n2
\n3<\/p>\n

2\u3001\u5728\u4f7f\u7528for\u5faa\u73af\u4e2d，\u5faa\u73af\u53d8\u91cf\u540d\u6700\u597d\u7528_\u5f00\u5934\u7684\u53d8\u91cf\u540d，\u751a\u81f3\u76f4\u63a5\u5c31\u7528_\u8fd9\u6837\u7684\u53d8\u91cf\u540d，\u8fd9\u6837\u5c31\u4e0d\u4f1a\u548c\u5916\u90e8\u53d8\u91cf\u540d\u79f0\u51b2\u7a81\u3002
\n3\u3001for\u5faa\u73af\u7ecf\u5e38\u642d\u914drange\u51fd\u6570\u4f7f\u7528\u3002range\u51fd\u6570\u53ef\u4ee5\u751f\u6210\u4e00\u7cfb\u5217\u7684\u6574\u578b\u6570\u5b57\u3002\u6bd4\u5982：range(5)\u53ef\u4ee5\u751f\u6210：0，1，2，3，4\u3002\u6709\u5173range\u51fd\u6570\u7684\u4ecb\u7ecd，\u6211\u4eec\u5c06\u5728\u51fd\u6570\u7ae0\u8282\u8be6\u7ec6\u4ecb\u7ecd\u3002<\/p>\n

3.6.4 try \u8bed\u53e5<\/h5>\n

try\u8bed\u53e5\u53ef\u4ee5\u7528\u6765\u6355\u83b7\u4e00\u7ec4\u8bed\u53e5\u4e2d\u6307\u5b9a\u7684\u5f02\u5e38\u5e76\u5904\u7406，\u4e5f\u53ef\u4ee5\u7528\u6765\u6e05\u7406\u4ee3\u7801\u3002try\u8bed\u53e5\u6709\u4e24\u79cd\u8bed\u6cd5\u683c\u5f0f\u3002
\n\u683c\u5f0f\u4e00：\u7528\u6765\u6e05\u7406\u4ee3\u7801
\ntry:
\n\u5b50\u53e5\u4f531
\nfinally:
\n\u5b50\u53e5\u4f532
\n\u5b50\u53e5\u4f531\u4e2d\u7684\u8bed\u53e5\u5c06\u4f1a\u4e00\u6761\u4e00\u6761\u7684\u6267\u884c，\u5982\u679c\u67d0\u6761\u8bed\u53e5\u62a5\u9519，\u5219\u8df3\u8fc7\u5b50\u53e5\u4f531\u4e2d\u5269\u4e0b\u7684\u5176\u4ed6\u8bed\u53e5，\u76f4\u63a5\u6267\u884c\u5b50\u53e5\u4f532\u4e2d\u7684\u8bed\u53e5\u3002
\n\u683c\u5f0f\u4e8c：\u7528\u6765\u6355\u83b7\u5f02\u5e38\u5e76\u5904\u7406
\ntry:
\n\u5b50\u53e5\u4f531
\n[except \u5f02\u5e381: \u6216 except (\u5f02\u5e381, \u5f02\u5e382):
\n\u5b50\u53e5\u4f532]*
\n[else:
\n\u5b50\u53e5\u4f533]
\n[finally:
\n\u5b50\u53e5\u4f534]
\n\u8bed\u53e5\u57571\u4e2d\u7684\u8bed\u53e5\u5c06\u4f1a\u4e00\u6761\u4e00\u6761\u7684\u6267\u884c，\u5982\u679c\u67d0\u6761\u8bed\u53e5\u62a5\u9519，\u5219\u8df3\u8fc7\u8bed\u53e5\u57571\u4e2d\u5269\u4e0b\u7684\u5176\u4ed6\u8bed\u53e5，\u7136\u540e\u6839\u636e\u5f02\u5e38\u539f\u56e0\u5230except\u8bed\u53e5\u4e2d\u5339\u914d\u5f02\u5e38，\u5982\u679c\u5339\u914d\u5230\u4e86，\u5219\u6267\u884c\u76f8\u5e94\u7684\u8bed\u53e5\u57572\u4e2d\u7684\u8bed\u53e5\u3002
\n\u5982\u679ctry\u5b50\u53e5\u4e2d\u7684\u8bed\u53e5\u57571\u6ca1\u6709\u5f15\u53d1\u5f02\u5e38，\u4e5f\u6ca1\u6709\u6267\u884creturn\u3001continue\u6216break\u8bed\u53e5，\u90a3\u4e48\u53ef\u9009\u7684else\u5b50\u53e5\u5c06\u4f1a\u88ab\u6267\u884c\u3002\u5e76\u4e14else\u5b50\u53e5\u4e2d\u7684\u5f02\u5e38\u4e0d\u4f1a\u88abexcept\u5b50\u53e5\u6355\u83b7\u5e76\u5904\u7406\u3002
\n\u800c\u65e0\u8bba\u60c5\u51b5\u5982\u4f55，finally\u5b50\u53e5\u4f53\u5728try\u8bed\u53e5\u7ed3\u675f\u524d\u603b\u4f1a\u88ab\u6267\u884c\u3002
\n1\u3001\u53ef\u4ee5\u901a\u8fc7sys.exc_info()\u6765\u8bbf\u95ee\u5f02\u5e38\u7684\u8be6\u7ec6\u4fe1\u606f\u3002\u8fd4\u56de\u4e00\u4e2a 3 \u5143\u7ec4，\u7531\u5f02\u5e38\u7c7b\u3001\u5f02\u5e38\u5b9e\u4f8b\u548c\u56de\u6eaf\u5bf9\u8c61\u7ec4\u6210\u3002\u5982\u4e0b：<\/p>\n\n\n\n\n\n\n\n\n
import sys<\/td>\n<\/tr>\n
print(sys.exc_info())<\/td>\n<\/tr>\n
try:<\/td>\n<\/tr>\n
\u00a0 \u00a0 5 + '5'<\/td>\n<\/tr>\n
except:<\/td>\n<\/tr>\n
\u00a0 \u00a0 print(sys.exc_info())<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

(None, None, None)
\n(<class \u2018TypeError\u2019>, TypeError(\u201cunsupported operand type(s) for +: \u2018int\u2019 and \u2018str\u2019\u201d), <traceback object at 0x000001564D162700>)<\/p>\n

\n

2\u3001\u53ef\u4ee5\u4f7f\u7528except:\u6216\u8005except Exception，\u56e0\u4e3a\u5728Python\u4e2d\u6240\u6709\u7684\u5f02\u5e38\u90fd\u662fException\u5f02\u5e38\u7684\u5b50\u7c7b\u3002\u5982\u4e0b：<\/p>\n\n\n\n\n\n\n
try:<\/td>\n<\/tr>\n
\u00a0 \u00a0 1\/0<\/td>\n<\/tr>\n
except Exception:<\/td>\n<\/tr>\n
\u00a0 \u00a0 print('\u51fa\u9519\u5566~')<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u51fa\u9519\u5566~<\/p>\n

\n

3\u3001\u53ef\u4ee5\u4f7f\u7528as\u5173\u952e\u5b57\u83b7\u53d6\u5230\u51fa\u9519\u7684\u539f\u56e0，\u5982\u4e0b：<\/p>\n\n\n\n\n\n\n
try:<\/td>\n<\/tr>\n
\u00a0 \u00a0 1\/0<\/td>\n<\/tr>\n
except Exception as err:<\/td>\n<\/tr>\n
\u00a0 \u00a0 print(f'\u51fa\u9519\u5566~，\u51fa\u9519\u539f\u56e0：{err}')<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u51fa\u9519\u5566~，\u51fa\u9519\u539f\u56e0：division by zero<\/p>\n

\n
3.6.5 with \u8bed\u53e5<\/h5>\n

with \u8bed\u53e5\u7528\u4e8e\u5305\u88c5\u5e26\u6709\u4f7f\u7528\u4e0a\u4e0b\u6587\u7ba1\u7406\u5668\u5b9a\u4e49\u7684\u65b9\u6cd5\u7684\u4ee3\u7801\u5757\u7684\u6267\u884c\u3002\u8fd9\u5141\u8bb8\u5bf9\u666e\u901a\u7684 try\u2026except\u2026finally \u4f7f\u7528\u6a21\u5f0f\u8fdb\u884c\u5c01\u88c5\u4ee5\u65b9\u4fbf\u5730\u91cd\u7528\u3002
\n\u5173\u4e8ewith\u8bed\u53e5\u7684\u8be6\u7ec6\u4f7f\u7528\u65b9\u6cd5\u5c06\u5728\u4e0a\u4e0b\u6587\u7ba1\u7406\u5668\u4e2d\u8be6\u7ec6\u4ecb\u7ecd\u3002<\/p>\n

3.6.6 match \u8bed\u53e5<\/h5>\n

match\u8bed\u53e5\u662fPython3.10\u7248\u672c\u4e2d\u65b0\u589e\u7684\u529f\u80fd\u3002
\n\u5728\u6761\u4ef6\u5206\u652f\u4e2d，\u5982\u679c\u53ef\u80fd\u60c5\u51b5\u4e0d\u591a，\u53ef\u4ee5\u4f7f\u7528if\u8bed\u53e5\u6765\u5b9e\u73b0\u3002\u5982\u679c\u53ef\u80fd\u7684\u60c5\u51b5\u6bd4\u8f83\u591a，\u5219\u9700\u8981\u5728if\u8bed\u53e5\u4e2d\u4f7f\u7528\u591a\u4e2aelif\u5b50\u53e5\u6765\u5b9e\u73b0\u3002\u4ecePython3.10\u7248\u672c\u4ee5\u540e\u5c31\u53ef\u4ee5\u5f00\u59cb\u4f7f\u7528match\u8bed\u53e5\u6765\u5b9e\u73b0\u4e86\u3002
\nmatch\u8bed\u53e5\u7684\u57fa\u672c\u8bed\u6cd5\u683c\u5f0f\u5982\u4e0b：
\nmatch \u53d8\u91cf\/\u8868\u8fbe\u5f0f:
\ncase \u503c1 [\u7ea6\u675f\u98791]:
\n\u5b50\u53e5\u4f531
\ncase \u503c2 [\u7ea6\u675f\u98792]:
\n\u5b50\u53e5\u4f532
\n\u2026
\n[case :
\n*\u5b50\u53e5\u4f53*] # \u6700\u591a\u6709\u4e00\u4e2a，\u4e14\u5fc5\u987b\u662f\u6700\u540e\u4e00\u4e2a\u5b50\u53e5
\n1\u3001match\u8bed\u53e5\u4f1a\u5bf9\u53d8\u91cf\u6216\u8005\u8868\u8fbe\u5f0f\u8fdb\u884c\u6c42\u503c，\u7136\u540e\u4e0ecase\u4e2d\u7684\u503c\u5339\u914d，\u5982\u679c\u5339\u914d\u6210\u529f\u5219\u6267\u884c\u76f8\u5e94case\u5b50\u53e5\u4f53，\u5269\u4e0b\u6240\u6709\u7684case\u5b50\u53e5\u5219\u5168\u90e8\u8df3\u8fc7\u4e0d\u6267\u884c\u3002\u5982\u679c\u5168\u90e8\u5339\u914d\u4e0d\u6210\u529f，\u5219\u6700\u540e\u53ef\u9009\u7684case _\u4f1a\u88ab\u6267\u884c\u3002
\n2\u3001\u8bed\u6cd5\u4e2d\u7684\u7ea6\u675f\u9879\u91c7\u7528\u7684\u5f62\u5f0f\u4e3aif \u8868\u8fbe\u5f0f，\u53ea\u6709case\u5b50\u53e5\u5339\u914d\u6210\u529f，\u5e76\u4e14\u540e\u9762\u7684\u7ea6\u675f\u9879\u4e2d\u7684\u8868\u8fbe\u5f0f\u4e5f\u4e3a\u771f\u65f6，\u624d\u6267\u884c\u76f8\u5e94\u7684case\u5b50\u53e5\u4f53\u3002
\n3\u3001case _\u662f\u4e00\u4e2a\u5fc5\u5b9a\u5339\u914d\u7684case\u5757，\u610f\u5473\u7740\u80fd\u591f\u5339\u914d\u6240\u6709\u60c5\u51b5\u3002match\u8bed\u53e5\u4e2d\u6700\u591a\u53ef\u4ee5\u6709\u4e00\u4e2a\u5fc5\u5b9a\u5339\u914d\u7684case\u5757，\u800c\u4e14\u5fc5\u987b\u662f\u6700\u540e\u4e00\u4e2a\u3002<\/p>\n

3.6.7 \u51fd\u6570\u5b9a\u4e49\u3001\u7c7b\u5b9a\u4e49<\/h5>\n

\u51fd\u6570\u5b9a\u4e49\u6216\u8005\u7c7b\u5b9a\u4e49\u4e5f\u662f\u8bed\u53e5\u3002\u5177\u4f53\u7684\u51fd\u6570\u5b9a\u4e49\u548c\u7c7b\u5b9a\u4e49\u5c06\u5206\u522b\u4f1a\u5728\u51fd\u6570\u548c\u7c7b\u7ae0\u8282\u4e2d\u8be6\u7ec6\u4ecb\u7ecd\u3002<\/p>\n

\n

\u7ec3\u4e60
\n1\u3001\u5c06\u6559\u7a0b\u4e2d\u6240\u6709\u7684\u590d\u5408\u8bed\u53e5\u793a\u4f8b\u5168\u90e8\u624b\u6572\u4e00\u904d\u5e76\u719f\u6089<\/p>\n","protected":false},"excerpt":{"rendered":"

\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb640\u6b21\uff0c\u70b9\u8d5e22\u6b21\uff0c\u6536\u85cf6\u6b21\u3002\u51fd\u6570\u5b9a\u4e49\u6216\u8005\u7c7b\u5b9a\u4e49\u4e5f\u662f\u8bed\u53e5\u3002\u5177\u4f53\u7684\u51fd\u6570\u5b9a\u4e49\u548c\u7c7b\u5b9a\u4e49\u5c06\u5206\u522b\u4f1a\u5728\u51fd\u6570\u548c\u7c7b\u7ae0\u8282\u4e2d\u8be6\u7ec6\u4ecb\u7ecd\u3002\u7ec3\u4e601\u3001\u5c06\u6559\u7a0b\u4e2d\u6240\u6709\u7684\u590d\u5408\u8bed\u53e5\u793a\u4f8b\u5168\u90e8\u624b\u6572\u4e00\u904d\u5e76\u719f\u6089\u3002<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[81,190],"topic":[],"class_list":["post-57518","post","type-post","status-publish","format-standard","hentry","category-server","tag-python","tag-190"],"yoast_head":"\nPython\u590d\u5408\u8bed\u53e5\u8be6\u89e3 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/57518.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Python\u590d\u5408\u8bed\u53e5\u8be6\u89e3 - 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