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\u4f7f\u7528\u8303\u4f8b<\/strong> \u4e0a\u9762\u8fd9\u6bb5\u4ee3\u7801\u8f93\u51fa\u4e3a<\/p>\n \u4e0a\u9762\u8fd9\u6bb5\u4ee3\u7801\u8f93\u51fa\u4e3a<\/p>\n document.write(“<p>Big: ” + txt.big() + “<\/p>”) document.write(“<p>Bold: ” + txt.bold() + “<\/p>”) document.write(“<p>Blink: ” + txt.blink() + ” (does not work in IE)<\/p>”) document.write(“<p>Fontcolor: ” + txt.fontcolor(“Red”) + “<\/p>”) document.write(“<p>Lowercase: ” + txt.toLowerCase() + “<\/p>”) document.write(“<p>Subscript: ” + txt.sub() + “<\/p>”) document.write(“<p>Link: ” + txt.link(“http:\/\/www.prglab.com”) + “<\/p>”) <\/body> <\/script><\/p>\n <\/body> \u8f93\u51fa\u4e3a\uff1a<\/p>\n <\/script><\/p>\n <\/body> \u8f93\u51fa\u4e3a\uff1a<\/p>\n <\/script> \u8f93\u51fa\u4e3a\uff1a<\/p>\n \u5b57\u7b26\u4e32\u5bf9\u8c61(String)\u88ab\u7528\u6765\u5904\u7406\u4e00\u6bb5\u50a8\u5b58\u7684\u6587\u672c\u3002 \u4f7f\u7528\u8303\u4f8b \u4e0b\u9762\u5217\u51fa\u5e38\u7528\u7684String\u5c5e\u6027\u548c\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u4f7f\u7528\u8303\u4f8b \u4f7f\u7528length\u5c5e\u6027\u83b7\u5f97\u5b57\u7b26\u4e32\u7684\u957f\u5ea6 var txt=”Hello world!” document.write(txt.length) \u4e0a\u9762\u8fd9\u6bb5\u4ee3\u7801\u8f93\u51fa\u4e3a 12 \u4f7f\u7528toUpperCase()\u51fd\u6570\u4f7f\u5b57\u7b26\u4e32\u4e2d\u5b57\u6bcd\u5168\u90e8\u53d8\u4e3a\u5927\u5199 var txt=”Hello world!” document.write(txt.toUpperCase()) \u4e0a\u9762\u8fd9\u6bb5\u4ee3\u7801\u8f93\u51fa\u4e3a HELLO WORLD! \u5b57\u7b26\u4e32\u663e\u793a\u63a7\u5236 \u5c06\u4e0b\u9762\u4ee3\u7801\u62f7\u8d1d\u5b58\u4e3ahtml\u6587\u4ef6\uff0c\u7528\u6d4f\u89c8\u5668\u6253\u5f00\u5bdf\u770b\u6548\u679c\u3002 <html> <body><script type=”text\/javascript”>var txt=”Hello World!” document.write(“<p>Big: ” + txt.big() + “<\/p>”) document.write(“<p>Small: ” + txt.small() + “<\/p>”) document.write(“<p>Bold: ” + txt.bold() + “<\/p>”) document.write(“<p>Italic: ” + txt.italics() + “<\/p>”) document.write(“<p>Blink: ” + txt.blink() + ” […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":3,"menu_order":19,"comment_status":"open","ping_status":"open","template":"","meta":[],"_links":{"self":[{"href":"https:\/\/www.prglab.com\/blog\/wp-json\/wp\/v2\/pages\/26"}],"collection":[{"href":"https:\/\/www.prglab.com\/blog\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.prglab.com\/blog\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.prglab.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.prglab.com\/blog\/wp-json\/wp\/v2\/comments?post=26"}],"version-history":[{"count":0,"href":"https:\/\/www.prglab.com\/blog\/wp-json\/wp\/v2\/pages\/26\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.prglab.com\/blog\/wp-json\/wp\/v2\/pages\/3"}],"wp:attachment":[{"href":"https:\/\/www.prglab.com\/blog\/wp-json\/wp\/v2\/media?parent=26"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n\u4e0b\u9762\u5217\u51fa\u5e38\u7528\u7684String\u5c5e\u6027\u548c\u51fd\u6570\uff0c\u4ee5\u53ca\u5b83\u4eec\u7684\u4f7f\u7528\u8303\u4f8b<\/p>\n\n
\n\n
\n var txt=”Hello world!”
\ndocument.write(txt.length)<\/td>\n<\/tr>\n<\/table>\n\n
\n 12<\/td>\n<\/tr>\n<\/table>\n<\/li>\n
\n\n
\n var txt=”Hello world!”
\ndocument.write(txt.toUpperCase())<\/td>\n<\/tr>\n<\/table>\n\n
\n HELLO WORLD!<\/td>\n<\/tr>\n<\/table>\n<\/li>\n
\n\u5c06\u4e0b\u9762\u4ee3\u7801\u62f7\u8d1d\u5b58\u4e3ahtml\u6587\u4ef6\uff0c\u7528\u6d4f\u89c8\u5668\u6253\u5f00\u5bdf\u770b\u6548\u679c\u3002<\/p>\n\n
\n <html>
\n<body><script type=”text\/javascript”>var txt=”Hello World!”<\/p>\n
\ndocument.write(“<p>Small: ” + txt.small() + “<\/p>”)<\/p>\n
\ndocument.write(“<p>Italic: ” + txt.italics() + “<\/p>”)<\/p>\n
\ndocument.write(“<p>Fixed: ” + txt.fixed() + “<\/p>”)
\ndocument.write(“<p>Strike: ” + txt.strike() + “<\/p>”)<\/p>\n
\ndocument.write(“<p>Fontsize: ” + txt.fontsize(16) + “<\/p>”)<\/p>\n
\ndocument.write(“<p>Uppercase: ” + txt.toUpperCase() + “<\/p>”)<\/p>\n
\ndocument.write(“<p>Superscript: ” + txt.sup() + “<\/p>”)<\/p>\n
\n<\/script><\/p>\n
\n<\/html><\/td>\n<\/tr>\n<\/table>\n<\/li>\n
\n\u4e0b\u9762\u7684\u4f8b\u5b50\u4f7f\u7528indexOf()\u51fd\u6570\u8fd4\u56de\u5728\u5b57\u7b26\u4e32\u4e2d\u7b2c\u4e00\u6b21\u51fa\u73b0\u6307\u5b9a\u5b50\u4e32\u7684\u4f4d\u7f6e\u3002\u6ce8\u610f\u4f4d\u7f6e\u7d22\u5f15\u53f7\u662f\u4ece0\u5f00\u59cb\u7684\uff0c\u5982\u679c\u6307\u5b9a\u5b50\u4e32\u4e0d\u5b58\u5728\uff0c\u5219\u8fd4\u56de-1<\/p>\n\n
\n <html>
\n<body><script type=”text\/javascript”>var str=”Hello world!”
\ndocument.write(str.indexOf(“Hello”) + “<br \/>”)
\ndocument.write(str.indexOf(“World”) + “<br \/>”)
\ndocument.write(str.indexOf(“world”))<\/p>\n
\n<\/html><\/td>\n<\/tr>\n<\/table>\n\n
\n 0
\n-1
\n6<\/td>\n<\/tr>\n<\/table>\n<\/li>\n
\nmatch\u51fd\u6570\u4e0e\u4e0a\u9762\u7684indexOf()\u51fd\u6570\u7c7b\u4f3c\uff0c\u4e5f\u662f\u5728\u5b57\u7b26\u4e32\u4e2d\u67e5\u627e\u6307\u5b9a\u7684\u5b50\u4e32\uff0c\u4f46\u4e0d\u540c\u7684\u662f\u5982\u679c\u627e\u5230\uff0c\u8fd9\u4e2a\u51fd\u6570\u8fd4\u56de\u8be5\u5b50\u4e32\u7684\u503c\uff0c\u5426\u5219\u8fd4\u56de\u7a7a\u503c(null)<\/p>\n\n
\n <html>
\n<body><script type=”text\/javascript”>var str=”Hello world!”
\ndocument.write(str.match(“world”) + “<br \/>”)
\ndocument.write(str.match(“World”) + “<br \/>”)
\ndocument.write(str.match(“worlld”) + “<br \/>”)
\ndocument.write(str.match(“world!”))<\/p>\n
\n<\/html><\/td>\n<\/tr>\n<\/table>\n\n
\n world
\nnull
\nnull
\nworld!<\/td>\n<\/tr>\n<\/table>\n<\/li>\n
\n\u5c06\u5b57\u7b26\u4e32\u4e2d\u6307\u5b9a\u7684\u5b50\u4e32\u7531\u5176\u4ed6\u5b57\u7b26\u4e32\u4ee3\u66ff<\/p>\n\n
\n <html>
\n<body><script type=”text\/javascript”>var str=”Hello John!”
\ndocument.write(str.replace(\/John\/,”Jane”))<\/p>\n
\n<\/body>
\n<\/html><\/td>\n<\/tr>\n<\/table>\n\n
\n Hello Jane!<\/td>\n<\/tr>\n<\/table>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"