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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                ~~~ <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title></title> <script type="text/javascript" src="js/jquery-1.11.1.js"></script> <script> $(function() { //each() => for //$('li').html('hello'); //相同操作的,不用each就可以 // $('li').each(function(i, elem){ // alert(i); // }); //each中的第一個形參i就是for循環中的i $('li').each(function(i, elem){ elem.style.background = 'yellow'; // $(elem).css('background', 'red'); }); //each中的第二個參數elem就是每個元素 //elem返回的是原生的元素,要轉成jQuery對象要用$()括起來 }) </script> </head> <body> <ul> <li></li> <li></li> <li></li> <li></li> </ul> </body> </html> ~~~ *** ### return false跳出循環 ~~~ <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title></title> <script type="text/javascript" src="js/jquery-1.11.1.js"></script> <script> $(function() { //原生跳出循環用break //jQuery中跳出循環用return false; $('li').each(function(i,elem){ $(this).html(i); if(i == 2){ return false; } }) }) </script> </head> <body> <ul> <li></li> <li></li> <li></li> <li></li> </ul> </body> </html> ~~~
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