{"id":2478,"date":"2025-05-29T17:22:22","date_gmt":"2025-06-04T10:07:21","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=2478"},"modified":"2025-06-04T17:22:22","modified_gmt":"2025-06-04T10:07:21","slug":"python-for-%e8%bf%b4%e5%9c%88","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/python\/python-for-%e8%bf%b4%e5%9c%88\/","title":{"rendered":"\u6df1\u5165\u5b78\u7fd2 Python for \u8ff4\u5708\uff1a\u6700\u65b0\u8a9e\u6cd5\u8207\u6700\u4f73\u5be6\u8e10\u6307\u5357\uff082025\uff09"},"content":{"rendered":"<p><meta charset=\"UTF-8\"><br \/>\n<meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"><br \/>\n<meta name=\"description\" content=\"\u672c\u6587\u5c07\u4ecb\u7d39 Python \u7684 for \u8ff4\u5708\u8a9e\u53e5\uff0c\u8b93\u4f60\u5b78\u6703\u5982\u4f55\u4f7f\u7528 for \u8ff4\u5708\u4f86\u91cd\u8907\u57f7\u884c\u4ee3\u78bc\u3002\u900f\u904e\u5b78\u7fd2 Python for \u8ff4\u5708\uff0c\u4f60\u5c07\u80fd\u5920\u66f4\u5feb\u901f\u5730\u5be6\u73fe\u4f60\u7684\u7a0b\u5f0f\u9700\u6c42\uff0c\u4e26\u63a2\u7d22\u5176\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u7684\u5f37\u5927\u529f\u80fd\u3002\"><br \/>\n<meta name=\"keywords\" content=\"Python, for \u8ff4\u5708, \u7a0b\u5f0f\u958b\u767c, Python \u6559\u5b78\"><br \/>\n<title>\u6df1\u5165\u5b78\u7fd2 Python for \u8ff4\u5708\uff1a\u6700\u65b0\u8a9e\u6cd5\u8207\u6700\u4f73\u5be6\u8e10\u6307\u5357\uff082025\uff09<\/title><\/p>\n<h1>\u6df1\u5165\u5b78\u7fd2 Python for \u8ff4\u5708\uff1a\u6700\u65b0\u8a9e\u6cd5\u8207\u6700\u4f73\u5be6\u8e10\u6307\u5357\uff082025\uff09<\/h1>\n<p>\u5728 Python \u4e2d\uff0c`for` \u8ff4\u5708\u8a9e\u53e5\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u7528\u65bc\u91cd\u8907\u57f7\u884c\u4ee3\u78bc\uff0c\u7279\u5225\u662f\u7576\u4f60\u9700\u8981\u904d\u6b77\u5e8f\u5217\uff08\u5982\u5217\u8868\u3001\u5143\u7d44\u3001\u5b57\u5178\u7b49\uff09\u6642\u3002\u4eca\u5929\uff0c\u6211\u5011\u5c07\u6df1\u5165\u4e86\u89e3 `for` \u8ff4\u5708\u7684\u7528\u6cd5\uff0c\u63d0\u4f9b\u6700\u65b0\u7684\u8a9e\u6cd5\u8207\u6700\u4f73\u5be6\u8e10\u3002<\/p>\n<p>### \u57fa\u672c\u7528\u6cd5<\/p>\n<p>\u4ee5\u4e0b\u662f\u4f7f\u7528 `for` \u8ff4\u5708\u7684\u57fa\u672c\u7bc4\u4f8b\uff0c\u8a72\u7bc4\u4f8b\u5c07\u8f38\u51fa\u5f9e 0 \u5230 4 \u7684\u6578\u5b57\uff1a<\/p>\n<p>&#8220;`python<br \/>\nfor i in range(5):<br \/>\n    print(i)  # \u8f38\u51fa 0, 1, 2, 3, 4<br \/>\n&#8220;`<\/p>\n<p>### \u904d\u6b77\u5217\u8868<\/p>\n<p>`for` \u8ff4\u5708\u4e0d\u50c5\u53ef\u4ee5\u7528\u4f86\u91cd\u8907\u57f7\u884c\u4ee3\u78bc\uff0c\u9084\u53ef\u4ee5\u904d\u6b77\u5217\u8868\u4e2d\u7684\u5143\u7d20\u3002\u4f8b\u5982\uff0c\u4ee5\u4e0b\u7bc4\u4f8b\u5c07\u8f38\u51fa\u4e00\u500b\u6c34\u679c\u5217\u8868\u4e2d\u7684\u6240\u6709\u5b57\u4e32\uff1a<\/p>\n<p>&#8220;`python<br \/>\nfruits = [&#8216;apple&#8217;, &#8216;banana&#8217;, &#8216;orange&#8217;]\nfor fruit in fruits:<br \/>\n    print(fruit)  # \u8f38\u51fa apple, banana, orange<br \/>\n&#8220;`<\/p>\n<p>### \u904d\u6b77\u5b57\u5178<\/p>\n<p>\u4f60\u9084\u53ef\u4ee5\u4f7f\u7528 `for` \u8ff4\u5708\u4f86\u904d\u6b77\u5b57\u5178\u4e2d\u7684\u9375\u503c\u5c0d\u3002\u4ee5\u4e0b\u7bc4\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u904d\u6b77\u4e26\u8f38\u51fa\u5b57\u5178\u4e2d\u7684\u6240\u6709\u9805\u76ee\uff1a<\/p>\n<p>&#8220;`python<br \/>\nprices = {&#8216;apple&#8217;: 10, &#8216;banana&#8217;: 5, &#8216;orange&#8217;: 15}<br \/>\nfor item, price in prices.items():<br \/>\n    print(f'{item}: {price}&#8217;)  # \u8f38\u51fa apple: 10, banana: 5, orange: 15<br \/>\n&#8220;`<\/p>\n<p>### \u932f\u8aa4\u6392\u9664<\/p>\n<p>\u5728\u4f7f\u7528 `for` \u8ff4\u5708\u6642\uff0c\u4f60\u53ef\u80fd\u6703\u9047\u5230\u4e00\u4e9b\u5e38\u898b\u7684\u932f\u8aa4\uff0c\u4f8b\u5982\uff1a<\/p>\n<p>&#8211; **\u932f\u8aa4\u7684\u7bc4\u570d\u8a2d\u5b9a**\uff1a\u78ba\u4fdd\u4f60\u5728 `range()` \u51fd\u6578\u4e2d\u63d0\u4f9b\u6b63\u78ba\u7684\u53c3\u6578\u3002<br \/>\n&#8211; **\u904d\u6b77\u7a7a\u5217\u8868\u6216\u5b57\u5178**\uff1a\u5728\u904d\u6b77\u6642\uff0c\u78ba\u8a8d\u5217\u8868\u6216\u5b57\u5178\u4e0d\u70ba\u7a7a\uff0c\u5426\u5247\u5c07\u4e0d\u6703\u8f38\u51fa\u4efb\u4f55\u7d50\u679c\u3002<\/p>\n<p>### \u5ef6\u4f38\u61c9\u7528<\/p>\n<p>`for` \u8ff4\u5708\u7684\u61c9\u7528\u975e\u5e38\u5ee3\u6cdb\uff0c\u53ef\u4ee5\u7528\u65bc\u6578\u64da\u8655\u7406\u3001\u6587\u4ef6\u8b80\u5beb\u3001\u6216\u662f\u7db2\u7d61\u8acb\u6c42\u7b49\u591a\u7a2e\u60c5\u6cc1\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528 `for` \u8ff4\u5708\u4f86\u8b80\u53d6\u6587\u4ef6\u5167\u5bb9\u7684\u7bc4\u4f8b\uff1a<\/p>\n<p>&#8220;`python<br \/>\nwith open(&#8216;example.txt&#8217;, &#8216;r&#8217;) as file:<br \/>\n    for line in file:<br \/>\n        print(line.strip())  # \u8f38\u51fa\u6587\u4ef6\u6bcf\u4e00\u884c\u5167\u5bb9<br \/>\n&#8220;`<\/p>\n<p>\u900f\u904e\u5b78\u7fd2 Python \u7684 `for` \u8ff4\u5708\uff0c\u4f60\u5c07\u80fd\u5920\u66f4\u5feb\u901f\u5730\u5be6\u73fe\u4f60\u7684\u7a0b\u5f0f\u9700\u6c42\uff0c\u4e26\u63d0\u9ad8\u4f60\u7684\u7a0b\u5f0f\u8a2d\u8a08\u80fd\u529b\u3002<\/p>\n<p>\u8981\u4e86\u89e3\u66f4\u591a\u6709\u95dc Python \u7684\u6559\u5b78\uff0c\u8acb\u53c3\u8003\u9019\u7bc7\u6587\u7ae0 [Python \u6559\u5b78\u8cc7\u6e90](https:\/\/vocus.cc\/article\/5f5c1c7ef9a8c5e3f6a9b5bb)\u3002<\/p>\n<p>### \u5e38\u898b\u554f\u984c\u89e3\u7b54\uff08Q&#038;A\uff09<\/p>\n<p>**Q1: \u5982\u4f55\u5728 `for` \u8ff4\u5708\u4e2d\u4f7f\u7528\u689d\u4ef6\u5224\u65b7\uff1f**<br \/>\nA: \u4f60\u53ef\u4ee5\u5728\u8ff4\u5708\u5167\u90e8\u4f7f\u7528 `if` \u8a9e\u53e5\u4f86\u52a0\u5165\u689d\u4ef6\u5224\u65b7\uff0c\u4f8b\u5982\uff1a<\/p>\n<p>&#8220;`python<br \/>\nfor i in range(10):<br \/>\n    if i % 2 == 0:<br \/>\n        print(f'{i} \u662f\u5076\u6578&#8217;)<br \/>\n&#8220;`<\/p>\n<p>**Q2: `for` \u8ff4\u5708\u80fd\u5426\u8207 `while` \u8ff4\u5708\u5408\u4f75\u4f7f\u7528\uff1f**<br \/>\nA: \u662f\u7684\uff0c\u4f60\u53ef\u4ee5\u5728 `for` \u8ff4\u5708\u4e2d\u5d4c\u5957 `while` \u8ff4\u5708\uff0c\u9019\u6a23\u53ef\u4ee5\u9032\u884c\u66f4\u8907\u96dc\u7684\u8fed\u4ee3\u64cd\u4f5c\u3002<\/p>\n<p>**Q3: \u5728 `for` \u8ff4\u5708\u4e2d\u5982\u4f55\u8655\u7406\u7570\u5e38\uff1f**<br \/>\nA: \u4f60\u53ef\u4ee5\u4f7f\u7528 `try&#8230;except` \u8a9e\u53e5\u4f86\u6355\u7372\u7570\u5e38\uff0c\u4f8b\u5982\uff1a<\/p>\n<p>&#8220;`python<br \/>\nfor i in range(5):<br \/>\n    try:<br \/>\n        print(10 \/ i)  # \u53ef\u80fd\u6703\u5f15\u767c\u9664\u4ee5\u96f6\u932f\u8aa4<br \/>\n    except ZeroDivisionError:<br \/>\n        print(&#8220;\u7121\u6cd5\u9664\u4ee5\u96f6\uff01&#8221;)<br \/>\n&#8220;`<\/p>\n<p>\u9019\u4e9b\u554f\u984c\u548c\u7b54\u6848\u5c07\u5e6b\u52a9\u4f60\u66f4\u597d\u5730\u4e86\u89e3 `for` \u8ff4\u5708\u7684\u7279\u6027\u8207\u7528\u6cd5\u3002\u5e0c\u671b\u9019\u7bc7\u6587\u7ae0\u80fd\u5e6b\u52a9\u4f60\u5728 Python \u7a0b\u5f0f\u8a2d\u8a08\u4e0a\u66f4\u9032\u4e00\u6b65\uff01<br \/>\n&#8212;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u5b78\u7fd2 Python for \u8ff4\u5708\uff1a\u6700\u65b0\u8a9e\u6cd5\u8207\u6700&#8230;<\/p>\n","protected":false},"author":1,"featured_media":2518,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[18],"tags":[],"class_list":["post-2478","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-python"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/badgameshow.com\/steven\/wp-content\/uploads\/2022\/12\/DALL\u00b7E-2022-12-28-14.25.55-\u62f7\u8c9d2.png","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pcFK27-DY","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/2478","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/comments?post=2478"}],"version-history":[{"count":8,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/2478\/revisions"}],"predecessor-version":[{"id":13071,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/2478\/revisions\/13071"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media\/2518"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=2478"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=2478"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=2478"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}