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<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title></title>
<script type="text/javascript">
/*
var str = "012345678901234567890123456789";
var re = /123/;
var globalre = /123/g;
//非全局匹配
var resultArray = re.exec(str);
console.log(resultArray[0]);//输出123
console.log(resultArray.index);//输出1
console.log(globalre.lastIndex);//输出0
var resultArray = re.exec(str);
console.log(resultArray[0]);//输出123
console.log(resultArray.index);//输出1
console.log(globalre.lastIndex);//输出0
//全局匹配
var resultArray = globalre.exec(str);
console.log(resultArray[0]);//输出123
console.log(resultArray.index);//输出1
console.log(globalre.lastIndex);//输出4
var resultArray = globalre.exec(str);
console.log(resultArray[0]);//输出123
console.log(resultArray.index);//输出11
console.log(globalre.lastIndex);//输出14
*/
window.onload = function () {
//Example one;
var str1 = 'time 2015-10-8 11:21:23；time 1988-7-28 10:10:32；time 2013-1-19 12:25:45；time 2022-12-11 10:10:22；';
var reg1 = /(\d{4})-(\d{1,2})-(\d{1,2})\s+(\d{1,2}):(\d{1,2}):(\d{1,2})/g;//\s表示空格 +：一个多个空格
var arr = reg1.exec(str1);
// console.log(arr);
var result = allExec(reg1, str1);
console.log(result);
//Example two;
var str2 = 'http://www.gurucv.com?cource=js&teacher=Cupid&typeCode=1';
var result = urlToJson(str2);
console.log(result);
console.log(Math.abs(~2015));
console.log(Math.ceil(011).toString(2));
}
//
function allExec(reg, str) {
if (!reg.global) {
return reg.exec(str);
}
var a = [];//用来获取每次捕获的结果
var result = null;
while ((result = reg.exec(str)) != null) {
a.push(result);//死循环
}
return a;
}
//
function urlToJson(str) {
var reg = /([^?=&]+)=([^=?&]+)/g;//排出？=& 等号左右两侧开头不能包括？=&
//出现多次拿exec去匹配
//var result = reg.exec(str);
var result = null;
var jsonLeft = "{", jsonRight = "}", jsonContent = "";
while (result = reg.exec(str)) {
for (var i = 1, len = result.length; i < len / 2; i = i + 2) {
jsonContent += '"' + result[i] + '":"' + result[i + 1] + '",';
}
}
return jsonLeft + jsonContent + jsonRight;
}
</script>
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<body>
</body>
</html>
