{"id":572,"date":"2025-10-23T15:15:40","date_gmt":"2025-10-23T07:15:40","guid":{"rendered":"http:\/\/www.pyteam.cn\/?p=572"},"modified":"2025-10-23T15:15:41","modified_gmt":"2025-10-23T07:15:41","slug":"python3-%e5%be%aa%e7%8e%af%e8%af%ad%e5%8f%a5","status":"publish","type":"post","link":"http:\/\/www.pyteam.cn\/index.php\/2025\/10\/23\/python3-%e5%be%aa%e7%8e%af%e8%af%ad%e5%8f%a5\/","title":{"rendered":"Python3 \u5faa\u73af\u8bed\u53e5"},"content":{"rendered":"\n

\u672c\u7ae0\u8282\u5c06\u4e3a\u5927\u5bb6\u4ecb\u7ecd Python \u5faa\u73af\u8bed\u53e5\u7684\u4f7f\u7528\u3002<\/p>\n\n\n\n

Python \u4e2d\u7684\u5faa\u73af\u8bed\u53e5\u6709 for \u548c while\u3002<\/p>\n\n\n\n

Python \u5faa\u73af\u8bed\u53e5\u7684\u63a7\u5236\u7ed3\u6784\u56fe\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n\n\n\n

\"\"\/<\/figure>\n\n\n\n
\n\n\n\n

while \u5faa\u73af<\/h2>\n\n\n\n

Python \u4e2d while \u8bed\u53e5\u7684\u4e00\u822c\u5f62\u5f0f\uff1a<\/p>\n\n\n\n

while \u5224\u65ad\u6761\u4ef6(condition)\uff1a\n    \u6267\u884c\u8bed\u53e5(statements)\u2026\u2026<\/pre>\n\n\n\n
\u6267\u884c\u6d41\u7a0b\u56fe\u5982\u4e0b\uff1a<\/p>\n\n\n\n
\"\"\/<\/figure>\n\n\n\n
\u6267\u884c Gif \u6f14\u793a\uff1a<\/p>\n\n\n\n
\"\"\/<\/figure>\n\n\n\n
\u540c\u6837\u9700\u8981\u6ce8\u610f\u5192\u53f7\u548c\u7f29\u8fdb\u3002\u53e6\u5916\uff0c\u5728 Python \u4e2d\u6ca1\u6709 do..while \u5faa\u73af\u3002<\/p>\n\n\n\n
\u4ee5\u4e0b\u5b9e\u4f8b\u4f7f\u7528\u4e86 while \u6765\u8ba1\u7b97 1 \u5230 100 \u7684\u603b\u548c\uff1a<\/p>\n\n\n\n
\u5b9e\u4f8b<\/h2>\n\n\n\n
#!\/usr\/bin\/env python3 n = 100 sum = 0 counter = 1 while counter <= n: sum = sum + counter counter += 1 print(“1 \u5230 %d \u4e4b\u548c\u4e3a: %d” % (n,sum))<\/p>\n\n\n\n
\u6267\u884c\u7ed3\u679c\u5982\u4e0b\uff1a<\/p>\n\n\n\n
1 \u5230 100 \u4e4b\u548c\u4e3a: 5050<\/pre>\n\n\n\n
\u65e0\u9650\u5faa\u73af<\/h3>\n\n\n\n
\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6e\u6761\u4ef6\u8868\u8fbe\u5f0f\u6c38\u8fdc\u4e0d\u4e3a false \u6765\u5b9e\u73b0\u65e0\u9650\u5faa\u73af\uff0c\u5b9e\u4f8b\u5982\u4e0b\uff1a<\/p>\n\n\n\n
\u5b9e\u4f8b<\/h2>\n\n\n\n
#!\/usr\/bin\/python3 var = 1 while var == 1 : # \u8868\u8fbe\u5f0f\u6c38\u8fdc\u4e3a true num = int(input(“\u8f93\u5165\u4e00\u4e2a\u6570\u5b57 :”)) print (“\u4f60\u8f93\u5165\u7684\u6570\u5b57\u662f: “, num) print (“Good bye!”)<\/p>\n\n\n\n
\u6267\u884c\u4ee5\u4e0a\u811a\u672c\uff0c\u8f93\u51fa\u7ed3\u679c\u5982\u4e0b\uff1a<\/p>\n\n\n\n
\u8f93\u5165\u4e00\u4e2a\u6570\u5b57  :5\n\u4f60\u8f93\u5165\u7684\u6570\u5b57\u662f:  5\n\u8f93\u5165\u4e00\u4e2a\u6570\u5b57  :<\/pre>\n\n\n\n
\u4f60\u53ef\u4ee5\u4f7f\u7528 CTRL+C<\/strong> \u6765\u9000\u51fa\u5f53\u524d\u7684\u65e0\u9650\u5faa\u73af\u3002<\/p>\n\n\n\n
\u65e0\u9650\u5faa\u73af\u5728\u670d\u52a1\u5668\u4e0a\u5ba2\u6237\u7aef\u7684\u5b9e\u65f6\u8bf7\u6c42\u975e\u5e38\u6709\u7528\u3002<\/p>\n\n\n\n
while \u5faa\u73af\u4f7f\u7528 else \u8bed\u53e5<\/h3>\n\n\n\n
\u5982\u679c while \u540e\u9762\u7684\u6761\u4ef6\u8bed\u53e5\u4e3a false \u65f6\uff0c\u5219\u6267\u884c else \u7684\u8bed\u53e5\u5757\u3002<\/p>\n\n\n\n
\u8bed\u6cd5\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n
while <expr>:\n    <statement(s)>\nelse:\n    <additional_statement(s)><\/pre>\n\n\n\n
expr \u6761\u4ef6\u8bed\u53e5\u4e3a true \u5219\u6267\u884c statement(s) \u8bed\u53e5\u5757\uff0c\u5982\u679c\u4e3a false\uff0c\u5219\u6267\u884c additional_statement(s)\u3002<\/p>\n\n\n\n
\u5faa\u73af\u8f93\u51fa\u6570\u5b57\uff0c\u5e76\u5224\u65ad\u5927\u5c0f\uff1a<\/p>\n\n\n\n
\u5b9e\u4f8b<\/h2>\n\n\n\n
#!\/usr\/bin\/python3 count = 0 while count < 5: print (count, ” \u5c0f\u4e8e 5″) count = count + 1 else: print (count, ” \u5927\u4e8e\u6216\u7b49\u4e8e 5″)<\/p>\n\n\n\n
\u6267\u884c\u4ee5\u4e0a\u811a\u672c\uff0c\u8f93\u51fa\u7ed3\u679c\u5982\u4e0b\uff1a<\/p>\n\n\n\n
0  \u5c0f\u4e8e 5\n1  \u5c0f\u4e8e 5\n2  \u5c0f\u4e8e 5\n3  \u5c0f\u4e8e 5\n4  \u5c0f\u4e8e 5\n5  \u5927\u4e8e\u6216\u7b49\u4e8e 5<\/pre>\n\n\n\n
\u7b80\u5355\u8bed\u53e5\u7ec4<\/h3>\n\n\n\n
\u7c7b\u4f3c if \u8bed\u53e5\u7684\u8bed\u6cd5\uff0c\u5982\u679c\u4f60\u7684 while \u5faa\u73af\u4f53\u4e2d\u53ea\u6709\u4e00\u6761\u8bed\u53e5\uff0c\u4f60\u53ef\u4ee5\u5c06\u8be5\u8bed\u53e5\u4e0e while \u5199\u5728\u540c\u4e00\u884c\u4e2d\uff0c \u5982\u4e0b\u6240\u793a\uff1a<\/p>\n\n\n\n
\u5b9e\u4f8b<\/h2>\n\n\n\n
#!\/usr\/bin\/python flag = 1 while (flag): print (‘\u6b22\u8fce\u8bbf\u95ee\u83dc\u9e1f\u6559\u7a0b!’) print (“Good bye!”)<\/p>\n\n\n\n
\u6ce8\u610f\uff1a<\/strong>\u4ee5\u4e0a\u7684\u65e0\u9650\u5faa\u73af\u4f60\u53ef\u4ee5\u4f7f\u7528 CTRL+C \u6765\u4e2d\u65ad\u5faa\u73af\u3002<\/p>\n\n\n\n
\u6267\u884c\u4ee5\u4e0a\u811a\u672c\uff0c\u8f93\u51fa\u7ed3\u679c\u5982\u4e0b\uff1a<\/p>\n\n\n\n
\u6b22\u8fce\u8bbf\u95ee\u83dc\u9e1f\u6559\u7a0b!\n\u6b22\u8fce\u8bbf\u95ee\u83dc\u9e1f\u6559\u7a0b!\n\u6b22\u8fce\u8bbf\u95ee\u83dc\u9e1f\u6559\u7a0b!\n\u6b22\u8fce\u8bbf\u95ee\u83dc\u9e1f\u6559\u7a0b!\n\u6b22\u8fce\u8bbf\u95ee\u83dc\u9e1f\u6559\u7a0b!\n\u2026\u2026<\/pre>\n\n\n\n
\n\n\n\n
for \u8bed\u53e5<\/h2>\n\n\n\n
Python for \u5faa\u73af\u53ef\u4ee5\u904d\u5386\u4efb\u4f55\u53ef\u8fed\u4ee3\u5bf9\u8c61\uff0c\u5982\u4e00\u4e2a\u5217\u8868\u6216\u8005\u4e00\u4e2a\u5b57\u7b26\u4e32\u3002<\/p>\n\n\n\n
for\u5faa\u73af\u7684\u4e00\u822c\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n
for <variable> in <sequence>: <statements> else: <statements><\/p>\n\n\n\n
\u6d41\u7a0b\u56fe\uff1a<\/strong><\/p>\n\n\n\n
\"\"\/<\/figure>\n\n\n\n
Python for \u5faa\u73af\u5b9e\u4f8b\uff1a<\/p>\n\n\n\n
\u5b9e\u4f8b<\/h2>\n\n\n\n
#!\/usr\/bin\/python3 sites = [“Baidu”, “Google”,”Runoob”,”Taobao”] for site in sites: print(site)<\/p>\n\n\n\n
\u4ee5\u4e0a\u4ee3\u7801\u6267\u884c\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a<\/p>\n\n\n\n
Baidu\nGoogle\nRunoob\nTaobao<\/pre>\n\n\n\n
\u4e5f\u53ef\u7528\u4e8e\u6253\u5370\u5b57\u7b26\u4e32\u4e2d\u7684\u6bcf\u4e2a\u5b57\u7b26\uff1a<\/p>\n\n\n\n
\u5b9e\u4f8b<\/h2>\n\n\n\n
#!\/usr\/bin\/python3 word = ‘runoob’ for letter in word: print(letter)<\/p>\n\n\n\n
\u4ee5\u4e0a\u4ee3\u7801\u6267\u884c\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a<\/p>\n\n\n\n
r\nu\nn\no\no\nb<\/pre>\n\n\n\n
\u6574\u6570\u8303\u56f4\u503c\u53ef\u4ee5\u914d\u5408 range() \u51fd\u6570\u4f7f\u7528\uff1a<\/p>\n\n\n\n
\u5b9e\u4f8b<\/h2>\n\n\n\n
#!\/usr\/bin\/python3 # 1 \u5230 5 \u7684\u6240\u6709\u6570\u5b57\uff1a for number in range(1, 6): print(number)<\/p>\n\n\n\n
\u4ee5\u4e0a\u4ee3\u7801\u6267\u884c\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a<\/p>\n\n\n\n
1\n2\n3\n4\n5<\/pre>\n\n\n\n
\n\n\n\n
for…else<\/h2>\n\n\n\n
\u5728 Python \u4e2d\uff0cfor…else \u8bed\u53e5\u7528\u4e8e\u5728\u5faa\u73af\u7ed3\u675f\u540e\u6267\u884c\u4e00\u6bb5\u4ee3\u7801\u3002<\/p>\n\n\n\n
\u8bed\u6cd5\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n
for item in iterable:\n    # \u5faa\u73af\u4e3b\u4f53\nelse:\n    # \u5faa\u73af\u7ed3\u675f\u540e\u6267\u884c\u7684\u4ee3\u7801<\/pre>\n\n\n\n
\u5f53\u5faa\u73af\u6267\u884c\u5b8c\u6bd5\uff08\u5373\u904d\u5386\u5b8c iterable \u4e2d\u7684\u6240\u6709\u5143\u7d20\uff09\u540e\uff0c\u4f1a\u6267\u884c else \u5b50\u53e5\u4e2d\u7684\u4ee3\u7801\uff0c\u5982\u679c\u5728\u5faa\u73af\u8fc7\u7a0b\u4e2d\u9047\u5230\u4e86 break \u8bed\u53e5\uff0c\u5219\u4f1a\u4e2d\u65ad\u5faa\u73af\uff0c\u6b64\u65f6\u4e0d\u4f1a\u6267\u884c else \u5b50\u53e5\u3002<\/p>\n\n\n\n
\u5b9e\u4f8b<\/h2>\n\n\n\n
for<\/strong> x in<\/strong> range(6):
 print<\/strong>(x)
else<\/strong>:
 print<\/strong>(“Finally finished!”)<\/p>\n\n\n\n
\u6267\u884c\u811a\u672c\u540e\uff0c\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a<\/p>\n\n\n\n
0\n1\n2\n3\n4\n5\nFinally finished!<\/pre>\n\n\n\n
\u4ee5\u4e0b for \u5b9e\u4f8b\u4e2d\u4f7f\u7528\u4e86 break \u8bed\u53e5\uff0cbreak \u8bed\u53e5\u7528\u4e8e\u8df3\u51fa\u5f53\u524d\u5faa\u73af\u4f53\uff0c\u4e0d\u4f1a\u6267\u884c else \u5b50\u53e5\uff1a<\/p>\n\n\n\n
\u5b9e\u4f8b<\/h2>\n\n\n\n
#!\/usr\/bin\/python3 sites = [“Baidu”, “Google”,”Runoob”,”Taobao”] for site in sites: if site == “Runoob”: print(“\u83dc\u9e1f\u6559\u7a0b!”) break print(“\u5faa\u73af\u6570\u636e ” + site) else: print(“\u6ca1\u6709\u5faa\u73af\u6570\u636e!”) print(“\u5b8c\u6210\u5faa\u73af!”)<\/p>\n\n\n\n
\u6267\u884c\u811a\u672c\u540e\uff0c\u5728\u5faa\u73af\u5230 “Runoob”\u65f6\u4f1a\u8df3\u51fa\u5faa\u73af\u4f53\uff1a<\/p>\n\n\n\n
\u5faa\u73af\u6570\u636e Baidu\n\u5faa\u73af\u6570\u636e Google\n\u83dc\u9e1f\u6559\u7a0b!\n\u5b8c\u6210\u5faa\u73af!<\/pre>\n\n\n\n
\n\n\n\n
range() \u51fd\u6570<\/h2>\n\n\n\n
\u5982\u679c\u4f60\u9700\u8981\u904d\u5386\u6570\u5b57\u5e8f\u5217\uff0c\u53ef\u4ee5\u4f7f\u7528\u5185\u7f6e range() \u51fd\u6570\u3002\u5b83\u4f1a\u751f\u6210\u6570\u5217\uff0c\u4f8b\u5982:<\/p>\n\n\n\n
\u5b9e\u4f8b<\/h2>\n\n\n\n
>>>for i in range(5): … print(i) … 0 1 2 3 4<\/p>\n\n\n\n
\u4f60\u4e5f\u53ef\u4ee5\u4f7f\u7528 range() \u6307\u5b9a\u533a\u95f4\u7684\u503c\uff1a<\/p>\n\n\n\n
\u5b9e\u4f8b<\/h2>\n\n\n\n
>>>for i in range(5,9) : print(i) 5 6 7 8 >>><\/p>\n\n\n\n
\u4e5f\u53ef\u4ee5\u4f7f range() \u4ee5\u6307\u5b9a\u6570\u5b57\u5f00\u59cb\u5e76\u6307\u5b9a\u4e0d\u540c\u7684\u589e\u91cf(\u751a\u81f3\u53ef\u4ee5\u662f\u8d1f\u6570\uff0c\u6709\u65f6\u8fd9\u4e5f\u53eb\u505a’\u6b65\u957f’):<\/p>\n\n\n\n
\u5b9e\u4f8b<\/h2>\n\n\n\n
>>>for i in range(0, 10, 3) : print(i) 0 3 6 9 >>><\/p>\n\n\n\n
\u8d1f\u6570\uff1a<\/p>\n\n\n\n
\u5b9e\u4f8b<\/h2>\n\n\n\n
>>>for i in range(-10, -100, -30) : print(i) -10 -40 -70 >>><\/p>\n\n\n\n
\u60a8\u53ef\u4ee5\u7ed3\u5408 range() \u548c len() \u51fd\u6570\u4ee5\u904d\u5386\u4e00\u4e2a\u5e8f\u5217\u7684\u7d22\u5f15,\u5982\u4e0b\u6240\u793a:<\/p>\n\n\n\n
\u5b9e\u4f8b<\/h2>\n\n\n\n
>>>a = [‘Google’, ‘Baidu’, ‘Runoob’, ‘Taobao’, ‘QQ’] >>> for i in range(len(a)): … print(i, a[i]) … 0 Google 1 Baidu 2 Runoob 3 Taobao 4 QQ >>><\/p>\n\n\n\n
\u8fd8\u53ef\u4ee5\u4f7f\u7528 range() \u51fd\u6570\u6765\u521b\u5efa\u4e00\u4e2a\u5217\u8868\uff1a<\/p>\n\n\n\n
\u5b9e\u4f8b<\/h2>\n\n\n\n
>>>list(range(5)) [0, 1, 2, 3, 4] >>><\/p>\n\n\n\n
\u66f4\u591a\u5173\u4e8e range() \u51fd\u6570\u7528\u6cd5\u53c2\u8003\uff1ahttps:\/\/www.runoob.com\/python3\/python3-func-range.html<\/a><\/p>\n\n\n\n
\n\n\n\n
break \u548c continue \u8bed\u53e5\u53ca\u5faa\u73af\u4e2d\u7684 else \u5b50\u53e5<\/h2>\n\n\n\n
break \u6267\u884c\u6d41\u7a0b\u56fe\uff1a<\/strong><\/p>\n\n\n\n
\"\"\/<\/figure>\n\n\n\n
continue \u6267\u884c\u6d41\u7a0b\u56fe\uff1a<\/strong><\/p>\n\n\n\n
\"\"\/<\/figure>\n\n\n\n
while \u8bed\u53e5\u4ee3\u7801\u6267\u884c\u8fc7\u7a0b\uff1a<\/p>\n\n\n\n
\"\"\/<\/figure>\n\n\n\n
for \u8bed\u53e5\u4ee3\u7801\u6267\u884c\u8fc7\u7a0b\uff1a<\/p>\n\n\n\n
\"\"\/<\/figure>\n\n\n\n
break<\/strong> \u8bed\u53e5\u53ef\u4ee5\u8df3\u51fa for \u548c while \u7684\u5faa\u73af\u4f53\u3002\u5982\u679c\u4f60\u4ece for \u6216 while \u5faa\u73af\u4e2d\u7ec8\u6b62\uff0c\u4efb\u4f55\u5bf9\u5e94\u7684\u5faa\u73af else \u5757\u5c06\u4e0d\u6267\u884c\u3002<\/p>\n\n\n\n
continue<\/strong> \u8bed\u53e5\u88ab\u7528\u6765\u544a\u8bc9 Python \u8df3\u8fc7\u5f53\u524d\u5faa\u73af\u5757\u4e2d\u7684\u5269\u4f59\u8bed\u53e5\uff0c\u7136\u540e\u7ee7\u7eed\u8fdb\u884c\u4e0b\u4e00\u8f6e\u5faa\u73af\u3002<\/p>\n\n\n\n
\u5b9e\u4f8b<\/h3>\n\n\n\n
while \u4e2d\u4f7f\u7528 break\uff1a<\/p>\n\n\n\n
\u5b9e\u4f8b<\/h2>\n\n\n\n
n = 5
while<\/strong> n > 0:
    n -= 1
 if<\/strong> n == 2:
 break<\/strong>
 print<\/strong>(n)
print<\/strong>(‘\u5faa\u73af\u7ed3\u675f\u3002’)<\/p>\n\n\n\n
\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a<\/p>\n\n\n\n
4\n3\n\u5faa\u73af\u7ed3\u675f\u3002<\/pre>\n\n\n\n
while \u4e2d\u4f7f\u7528 continue\uff1a<\/p>\n\n\n\n
\u5b9e\u4f8b<\/h2>\n\n\n\n
n = 5
while<\/strong> n > 0:
    n -= 1
 if<\/strong> n == 2:
 continue<\/strong>
 print<\/strong>(n)
print<\/strong>(‘\u5faa\u73af\u7ed3\u675f\u3002’)<\/p>\n\n\n\n
\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a<\/p>\n\n\n\n
4\n3\n1\n0\n\u5faa\u73af\u7ed3\u675f\u3002<\/pre>\n\n\n\n
\u66f4\u591a\u5b9e\u4f8b\u5982\u4e0b\uff1a<\/p>\n\n\n\n
\u5b9e\u4f8b<\/h2>\n\n\n\n
#!\/usr\/bin\/python3 for letter in ‘Runoob’: # \u7b2c\u4e00\u4e2a\u5b9e\u4f8b if letter == ‘b’: break print (‘\u5f53\u524d\u5b57\u6bcd\u4e3a :’, letter) var = 10 # \u7b2c\u4e8c\u4e2a\u5b9e\u4f8b while var > 0: print (‘\u5f53\u524d\u53d8\u91cf\u503c\u4e3a :’, var) var = var -1 if var == 5: break print (“Good bye!”)<\/p>\n\n\n\n
\u6267\u884c\u4ee5\u4e0a\u811a\u672c\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a<\/p>\n\n\n\n
\u5f53\u524d\u5b57\u6bcd\u4e3a : R\n\u5f53\u524d\u5b57\u6bcd\u4e3a : u\n\u5f53\u524d\u5b57\u6bcd\u4e3a : n\n\u5f53\u524d\u5b57\u6bcd\u4e3a : o\n\u5f53\u524d\u5b57\u6bcd\u4e3a : o\n\u5f53\u524d\u53d8\u91cf\u503c\u4e3a : 10\n\u5f53\u524d\u53d8\u91cf\u503c\u4e3a : 9\n\u5f53\u524d\u53d8\u91cf\u503c\u4e3a : 8\n\u5f53\u524d\u53d8\u91cf\u503c\u4e3a : 7\n\u5f53\u524d\u53d8\u91cf\u503c\u4e3a : 6\nGood bye!<\/pre>\n\n\n\n
\u4ee5\u4e0b\u5b9e\u4f8b\u5faa\u73af\u5b57\u7b26\u4e32 Runoob\uff0c\u78b0\u5230\u5b57\u6bcd o \u8df3\u8fc7\u8f93\u51fa\uff1a<\/p>\n\n\n\n
\u5b9e\u4f8b<\/h2>\n\n\n\n
#!\/usr\/bin\/python3 for letter in ‘Runoob’: # \u7b2c\u4e00\u4e2a\u5b9e\u4f8b if letter == ‘o’: # \u5b57\u6bcd\u4e3a o \u65f6\u8df3\u8fc7\u8f93\u51fa continue print (‘\u5f53\u524d\u5b57\u6bcd :’, letter) var = 10 # \u7b2c\u4e8c\u4e2a\u5b9e\u4f8b while var > 0: var = var -1 if var == 5: # \u53d8\u91cf\u4e3a 5 \u65f6\u8df3\u8fc7\u8f93\u51fa continue print (‘\u5f53\u524d\u53d8\u91cf\u503c :’, var) print (“Good bye!”)<\/p>\n\n\n\n
\u6267\u884c\u4ee5\u4e0a\u811a\u672c\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a<\/p>\n\n\n\n
\u5f53\u524d\u5b57\u6bcd : R\n\u5f53\u524d\u5b57\u6bcd : u\n\u5f53\u524d\u5b57\u6bcd : n\n\u5f53\u524d\u5b57\u6bcd : b\n\u5f53\u524d\u53d8\u91cf\u503c : 9\n\u5f53\u524d\u53d8\u91cf\u503c : 8\n\u5f53\u524d\u53d8\u91cf\u503c : 7\n\u5f53\u524d\u53d8\u91cf\u503c : 6\n\u5f53\u524d\u53d8\u91cf\u503c : 4\n\u5f53\u524d\u53d8\u91cf\u503c : 3\n\u5f53\u524d\u53d8\u91cf\u503c : 2\n\u5f53\u524d\u53d8\u91cf\u503c : 1\n\u5f53\u524d\u53d8\u91cf\u503c : 0\nGood bye!<\/pre>\n\n\n\n
\u5faa\u73af\u8bed\u53e5\u53ef\u4ee5\u6709 else \u5b50\u53e5\uff0c\u5b83\u5728\u7a77\u5c3d\u5217\u8868(\u4ee5for\u5faa\u73af)\u6216\u6761\u4ef6\u53d8\u4e3a false (\u4ee5while\u5faa\u73af)\u5bfc\u81f4\u5faa\u73af\u7ec8\u6b62\u65f6\u88ab\u6267\u884c\uff0c\u4f46\u5faa\u73af\u88ab break \u7ec8\u6b62\u65f6\u4e0d\u6267\u884c\u3002<\/p>\n\n\n\n
\u5982\u4e0b\u5b9e\u4f8b\u7528\u4e8e\u67e5\u8be2\u8d28\u6570\u7684\u5faa\u73af\u4f8b\u5b50:<\/p>\n\n\n\n
\u5b9e\u4f8b<\/h2>\n\n\n\n
#!\/usr\/bin\/python3 for n in range(2, 10): for x in range(2, n): if n % x == 0: print(n, ‘\u7b49\u4e8e’, x, ‘*’, n\/\/x) break else: # \u5faa\u73af\u4e2d\u6ca1\u6709\u627e\u5230\u5143\u7d20 print(n, ‘ \u662f\u8d28\u6570’)<\/p>\n\n\n\n
\u6267\u884c\u4ee5\u4e0a\u811a\u672c\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a<\/p>\n\n\n\n
2  \u662f\u8d28\u6570\n3  \u662f\u8d28\u6570\n4 \u7b49\u4e8e 2 * 2\n5  \u662f\u8d28\u6570\n6 \u7b49\u4e8e 2 * 3\n7  \u662f\u8d28\u6570\n8 \u7b49\u4e8e 2 * 4\n9 \u7b49\u4e8e 3 * 3<\/pre>\n\n\n\n
\n\n\n\n
pass \u8bed\u53e5<\/h2>\n\n\n\n
Python pass\u662f\u7a7a\u8bed\u53e5\uff0c\u662f\u4e3a\u4e86\u4fdd\u6301\u7a0b\u5e8f\u7ed3\u6784\u7684\u5b8c\u6574\u6027\u3002<\/p>\n\n\n\n
pass \u4e0d\u505a\u4efb\u4f55\u4e8b\u60c5\uff0c\u4e00\u822c\u7528\u505a\u5360\u4f4d\u8bed\u53e5\uff0c\u5982\u4e0b\u5b9e\u4f8b<\/p>\n\n\n\n
\u5b9e\u4f8b<\/h2>\n\n\n\n
>>>while True: … pass # \u7b49\u5f85\u952e\u76d8\u4e2d\u65ad (Ctrl+C)<\/p>\n\n\n\n
\u6700\u5c0f\u7684\u7c7b:<\/p>\n\n\n\n
\u5b9e\u4f8b<\/h2>\n\n\n\n
>>>class MyEmptyClass: … pass<\/p>\n\n\n\n
\u4ee5\u4e0b\u5b9e\u4f8b\u5728\u5b57\u6bcd\u4e3a o \u65f6 \u6267\u884c pass \u8bed\u53e5\u5757:<\/p>\n\n\n\n
\u5b9e\u4f8b<\/h2>\n\n\n\n
#!\/usr\/bin\/python3 for letter in ‘Runoob’: if letter == ‘o’: pass print (‘\u6267\u884c pass \u5757’) print (‘\u5f53\u524d\u5b57\u6bcd :’, letter) print (“Good bye!”)<\/p>\n\n\n\n
\u6267\u884c\u4ee5\u4e0a\u811a\u672c\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a<\/p>\n\n\n\n
\u5f53\u524d\u5b57\u6bcd : R\n\u5f53\u524d\u5b57\u6bcd : u\n\u5f53\u524d\u5b57\u6bcd : n\n\u6267\u884c pass \u5757\n\u5f53\u524d\u5b57\u6bcd : o\n\u6267\u884c pass \u5757\n\u5f53\u524d\u5b57\u6bcd : o\n\u5f53\u524d\u5b57\u6bcd : b\nGood bye!<\/pre>\n","protected":false},"excerpt":{"rendered":"
\u672c\u7ae0\u8282\u5c06\u4e3a\u5927\u5bb6\u4ecb\u7ecd Python \u5faa\u73af\u8bed\u53e5\u7684\u4f7f\u7528\u3002 Python \u4e2d...<\/p>\n","protected":false},"author":1,"featured_media":486,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-572","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-1"],"views":414,"_links":{"self":[{"href":"http:\/\/www.pyteam.cn\/index.php\/wp-json\/wp\/v2\/posts\/572","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.pyteam.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.pyteam.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.pyteam.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.pyteam.cn\/index.php\/wp-json\/wp\/v2\/comments?post=572"}],"version-history":[{"count":1,"href":"http:\/\/www.pyteam.cn\/index.php\/wp-json\/wp\/v2\/posts\/572\/revisions"}],"predecessor-version":[{"id":573,"href":"http:\/\/www.pyteam.cn\/index.php\/wp-json\/wp\/v2\/posts\/572\/revisions\/573"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.pyteam.cn\/index.php\/wp-json\/wp\/v2\/media\/486"}],"wp:attachment":[{"href":"http:\/\/www.pyteam.cn\/index.php\/wp-json\/wp\/v2\/media?parent=572"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.pyteam.cn\/index.php\/wp-json\/wp\/v2\/categories?post=572"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.pyteam.cn\/index.php\/wp-json\/wp\/v2\/tags?post=572"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}