{"id":5008,"date":"2023-01-05T11:37:09","date_gmt":"2023-01-05T03:37:09","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=5008"},"modified":"2023-01-05T11:37:09","modified_gmt":"2023-01-05T03:37:09","slug":"%e5%ad%b8%e7%bf%92%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8typescript%e5%ad%97%e4%b8%b2%e7%9a%84%e6%8f%90%e5%8f%96substr","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/typescript\/%e5%ad%b8%e7%bf%92%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8typescript%e5%ad%97%e4%b8%b2%e7%9a%84%e6%8f%90%e5%8f%96substr\/","title":{"rendered":"\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528TypeScript\u5b57\u4e32\u7684\u63d0\u53d6(substr)"},"content":{"rendered":"<p><meta name=\"keywords\" content=\"TypeScript, \u5b57\u4e32\u63d0\u53d6, substr\"><\/p>\n<h1>TypeScript \u5b57\u4e32\u7684\u63d0\u53d6(substr)<\/h1>\n<p>TypeScript \u662f\u4e00\u7a2e JavaScript \u7684\u8d85\u96c6\uff0c\u5b83\u64c1\u6709 JavaScript \u7684\u6240\u6709\u529f\u80fd\uff0c\u4e26\u4e14\u63d0\u4f9b\u4e86\u984d\u5916\u7684\u7279\u6027\uff0c\u4f8b\u5982\u985e\u578b\u6aa2\u67e5\u548c\u66f4\u591a\u7684\u6a21\u7d44\u5316\u652f\u63f4\u3002\u5728 TypeScript \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 substr() \u65b9\u6cd5\u4f86\u63d0\u53d6\u5b57\u4e32\u4e2d\u7684\u4e00\u90e8\u5206\u3002<\/p>\n<p><!--more--><\/p>\n<p>substr() \u65b9\u6cd5\u6703\u5f9e\u6307\u5b9a\u7684\u4f4d\u7f6e\u958b\u59cb\u63d0\u53d6\u5b57\u4e32\u4e2d\u7684\u4e00\u90e8\u5206\uff0c\u4e26\u4e14\u53ef\u4ee5\u6307\u5b9a\u8981\u63d0\u53d6\u7684\u5b57\u5143\u6578\u91cf\u3002\u5b83\u7684\u7b2c\u4e00\u500b\u53c3\u6578\u662f\u958b\u59cb\u63d0\u53d6\u7684\u4f4d\u7f6e\uff0c\u7b2c\u4e8c\u500b\u53c3\u6578\u662f\u8981\u63d0\u53d6\u7684\u5b57\u5143\u6578\u91cf\u3002<\/p>\n<pre class=\"brush: typescript\">\nlet str = \"Hello World!\";\nlet substr = str.substr(6, 5);\nconsole.log(substr); \/\/ \"World\"\n<\/pre>\n<p>\u4e0a\u9762\u7684\u7a0b\u5f0f\u78bc\u6703\u5f9e\u5b57\u4e32 &#8220;Hello World!&#8221; \u4e2d\u63d0\u53d6\u51fa &#8220;World&#8221; \u9019\u500b\u5b57\u4e32\u3002\u7b2c\u4e00\u500b\u53c3\u6578 6 \u8868\u793a\u5f9e\u7b2c 6 \u500b\u5b57\u5143\u958b\u59cb\u63d0\u53d6\uff0c\u7b2c\u4e8c\u500b\u53c3\u6578 5 \u8868\u793a\u63d0\u53d6 5 \u500b\u5b57\u5143\u3002<\/p>\n<p>\u5982\u679c\u53ea\u6307\u5b9a\u4e00\u500b\u53c3\u6578\uff0c\u90a3\u9ebc\u5b83\u5c31\u6703\u5f9e\u6307\u5b9a\u7684\u4f4d\u7f6e\u958b\u59cb\u63d0\u53d6\u5230\u5b57\u4e32\u7684\u6700\u5f8c\u4e00\u500b\u5b57\u5143\u3002<\/p>\n<pre class=\"brush: typescript\">\nlet str = \"Hello World!\";\nlet substr = str.substr(6);\nconsole.log(substr); \/\/ \"World!\"\n<\/pre>\n<p>\u4e0a\u9762\u7684\u7a0b\u5f0f\u78bc\u6703\u5f9e\u5b57\u4e32 &#8220;Hello World!&#8221; \u4e2d\u63d0\u53d6\u51fa &#8220;World!&#8221; \u9019\u500b\u5b57\u4e32\u3002\u7b2c\u4e00\u500b\u53c3\u6578 6 \u8868\u793a\u5f9e\u7b2c 6 \u500b\u5b57\u5143\u958b\u59cb\u63d0\u53d6\uff0c\u7b2c\u4e8c\u500b\u53c3\u6578\u6c92\u6709\u6307\u5b9a\uff0c\u6240\u4ee5\u6703\u63d0\u53d6\u5230\u5b57\u4e32\u7684\u6700\u5f8c\u4e00\u500b\u5b57\u5143\u3002<\/p>\n<p>substr() \u65b9\u6cd5\u662f\u4e00\u500b\u975e\u5e38\u6709\u7528\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u7528\u4f86\u63d0\u53d6\u5b57\u4e32\u4e2d\u7684\u4e00\u90e8\u5206\uff0c\u800c\u4e0d\u9700\u8981\u5c0d\u5b57\u4e32\u9032\u884c\u8907\u96dc\u7684\u8655\u7406\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528TypeScript\u5b57\u4e32\u7684\u63d0\u53d6(substr)\uff0c\u4e86\u89e3\u5982\u4f55\u4f7f\u7528substr\u51fd\u6578\u4f86\u63d0\u53d6\u5b57\u4e32\uff0c\u4ee5\u53ca\u5982\u4f55\u4f7f\u7528\u5b83\u4f86\u6539\u5584\u7a0b\u5f0f\u78bc\u7684\u53ef\u8b80\u6027\u548c\u53ef\u7dad\u8b77\u6027\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","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":[187],"tags":[186],"class_list":["post-5008","post","type-post","status-publish","format-standard","hentry","category-typescript","tag-typescript"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pcFK27-1iM","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5008","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=5008"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5008\/revisions"}],"predecessor-version":[{"id":5009,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/5008\/revisions\/5009"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=5008"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=5008"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=5008"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}