字符串截取问题

[game_0513]

我有好几个字符串 ，A1212,AB1314,DC1231,RR121,怎样才能提取每个字符串最前面的字母呢

[begintransaction]

[Quote=引用 1 楼 hch126163 的回复:]
var str="A1212,AB1314,DC1231,RR121";
alert(str.match(/[a-zA-Z]+(?=[\d]+)/g));
[/Quote]
+1
操作字符串类的用正则表达式相对要方便灵活些

[hch126163]

var str="A1212,AB1314,DC1231,RR121";
alert(str.match(/[a-zA-Z]+(?=[\d]+)/g));

[Pro_ah]

        string str = "";
        string[] tem = new string[] { "A1212", "AB1314", "DC1231", "RR121" };
        for (int i = 0; i < tem.Length; i++)
        {
            str += tem[i].Substring(0, 1) + "<br/>";
        }
        Response.Write(str);

[zengkk2009]

楼上正解

[qxg3260]

<script language='javascript'>
alert('fd');
</script>

[qxg3260]

string str="A1212, AB1314, DC1231, RR121";
string[] s=str.split(',');
foreach(string ss in s)
{
Response.Write(ss[0]);
}