87,997
社区成员
发帖
与我相关
我的任务
分享js,split可使冒号，分号变逗号?
还有 if (mData2[j][0].indexOf(checkStr) != -1) 这句是要判断什么的呢？
...全文
请发表友善的回复…
发表回复
a124642820 2017-05-20
- 打赏
- 举报
百度一下把，按照我给的 ，给我分哦 ~
a124642820 2017-05-20
- 打赏
- 举报
.replace(";",",")
天际的海浪 2017-05-20
- 打赏
- 举报
split是把字符串分割成数组
如
a = "abc;def;ghi"
b = a.split(";") 把a字符串用;分割成数组
b的值就是 ["abc","def","ghi"] 这样一个数组
在用alert输出数组时，会自动调用数组对象的toString方法把数组转换成字符串，
数组对象的toString方法类似于调用 join(",") 就是把数组的各元素用“,”拼接成字符串
似梦飞花 2017-05-20
- 打赏
- 举报
split分割成数组后 在alert其实是调了数组的toString方法 toString默认吧,作为分割符
你不要alert 用console.log就看出来是数组了
YXTS122 2017-05-20
- 打赏
- 举报
clock.js
function splitStr(e) {
/**
* 字符串e的值是
*total：week7:30;week6:30;week5:30;week4:30;week3:30;week2:30;week1:30;;
*count：week7:5;week6:2;week5:1;week4:3;week3:5;week2:4;week1:3;
*/
var i = 0, j = 0;
alert(e);
var mData1 = e.split(';');
var mData2 = new Array();
alert(mData1);
for (i = 0; i < mData1.length; i++) {
mData2[i] = mData1[i].split(':');
alert(mData1[i]);
alert(mData2[i]);
}
//alert(mData2);
//alert(mData2.length);
var mArray1 = new Array();
var mArray2 = new Array();
var k = 0;
for (i = 0; i < 7; i++) {
k = 0;
for (j = 0; j < mData2.length; j++) {
var checkStr = 'week' + (i + 1);
if (mData2[j][0].indexOf(checkStr) != -1) {
alert("i="+i+"j="+j);
if (k == 0) {
mArray1[i] = mData2[j][1];
k = 1;
}
else {
mArray2[i] = mData2[j][1];
}
}
}
}
for(i = 0; i < 7; i++){
if(isNaN(mArray1[i])){
mArray1[i] = 0;
}
if(isNaN(mArray2[i])){
mArray2[i] = 0;
}
}
alert(mArray1);
alert(mArray2);
} <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html
xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta charset="utf-8" />
<title>判断字符串是否合法</title>
<script src="clock.js">
</script>
</head>
<body>
<form action="" method="post" name="myform" id="myform">
<input type="text" name="txtString">
<input type="button" value="切割字符串"
onclick="splitStr(document.myform.txtString.value)">
</form>
</body>
</html> 
