JS_正则_match
1、
1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 2 3 <html> 4 5 <style type="text/css"> 6 </style> 7 8 <script type="text/javascript" > 9 10 window.onload = function() 11 { 12 var str = "asdLff Ll "; 13 var rtn = str.match(/[L]/); 14 console.log(rtn); 15 console.log(rtn.length); 16 for (var i in rtn) 17 { 18 console.log(i +" ==> "+rtn[i]); 19 } 20 21 console.log("***"); 22 console.log(rtn[0]); 23 console.log(rtn["index"]); 24 console.log(rtn["input"]); 25 26 console.log("***"); 27 var rtn01 = str.match(/[A]/); 28 console.log(rtn01); 29 30 console.log("***"); 31 str = "asldLff Ll "; 32 var rtn02 = str.match(/[Ll]/); 33 console.log(rtn02); 34 }; 35 36 </script> 37 38 </html>
chrome （版本 49.0.2623.87 m） 控制台输出：
a.html:14 ["L", index: 3, input: "asdLff Ll "]
a.html:15 1
a.html:18 0 ==> L
a.html:18 index ==> 3
a.html:18 input ==> asdLff Ll
a.html:21 ***
a.html:22 L
a.html:23 3
a.html:24 asdLff Ll
a.html:26 ***
a.html:28 null
a.html:30 ***
a.html:33 ["l", index: 2, input: "asldLff Ll "]
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