標籤：style blog http java color os
第一個--->字串的截取substring()方法
substring(a,b)--->【a,b)區間截取字元。下標從0開始。從a下標開始，截取到b下標的前一個字元。返回一個新的字串
1 <script type="text/javascript" src="js/jquery-1.9.1.min.js"></script> 2 <script type="text/javascript"> 3 4 5 function testSubstring(){ 6 var inputValue=$("#ids").val(); 7 var ad=inputValue.substring(1,2); 8 alert(ad); 9 }10 </script>11 </head>12 13 <body>14 15 <input type="text" id="ids" onblur="testSubstring();">16 </body>View Code
第二個--->字串的截取substr()方法
substr(a,b)--->從a下標開始截取，截取b長度的字串，返回一個新字串。
1 <script type="text/javascript" src="js/jquery-1.9.1.min.js"></script> 2 <script type="text/javascript"> 3 4 5 function testSubstr(){ 6 var inputValue=$("#ids").val(); 7 var ad=inputValue.substr(1,2); 8 alert(ad); 9 }10 </script>11 </head>12 13 <body>14 15 <input type="text" id="ids" onblur="testSubstr();">16 </body>View Code
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