<script>
var str = "604134a,604135b,604134c,604134a,604134d,604134e,604134c,604134d,604134e,";
str = str.split(",").sort().join(",").replace(/^,/,"");
str = str.replace(/([^,]+,)\1/g,"$1");
alert(str)
</script>
var str = "604134a,604135b,604134c,604134a,604134d,604134e,604134c,604134d,604134e,";
str = str.split(",").sort().join(",").replace(/^,/,"");
str = str.replace(/([^,]+,)\1/g,"$1");
alert(str)
</script>
var str = "604134a,604135b,604134c,604134a,604134d,604134e,604134c,604134d,604134e,";
var strArr = str.split(",");
var n = strArr.length;
for(i=0;i<n;i++)
{
for(j=i+1;j<n;j++)
{
if(strArr[j] == strArr[i])strArr[j] = 0;
}
}
var myStr="";
for(i=0;i<n;i++)
{
if(strArr[i] != "" && strArr[i] != 0)
{
myStr += strArr[i];
myStr += ";";
}
}
alert(myStr);
</script>
如果字符串中有三个或更多一样的情况下就不行了:)不过像你这种写法我还第一次看到!呵呵!先谢了!
学习!!!
var str = "604134a,604135b,604134c,604134a,604134d,604134e,604134c,604134d,604134e,";
var arr = str.split(",");
for (i =0; i < arr.length; i++)
{
str = str.replace(arr[i], "");
if (str.indexOf(arr[i]) < 0 )
str += arr[i] + ",";
}
alert(str);
}
</script>
<input type=button onclick="replace()" value="Click me">
var str = "604134a,604135b,604134c,604134a,604134d,604134c,604134e,604134c,604134d,604134e,";
str = str.split(",").sort().join(",").replace(/^,/,"");
str = str.replace(/([^,]+,)\1+/g,"$1"); //多个+试试?
alert(str)
</script>
---------------------------<script>
function replace(){
var str = "604134a,604135b,604134c,604134a,604134d,604134e,604134c,604134d,604134e,";
var arr = str.split(",");
var newstr = new String();
for (i =0; i < arr.length; i++)
{
if (newstr.indexOf(arr[i]) < 0 )
newstr += arr[i] + ",";
}
alert(newstr);
}
</script>
<input type=button onclick="replace()" value="Click me">
试试:var str = "604134a,604135b,604134c,604134a,604134d,604134c,604134e,604134c,604134d,604134e,";
str = str.split(",").sort().join(" ");
document.write(str);
document.write("<BR>");
str = str.replace(/\b(.+) \1\b/g,"$1");
document.write(str)
var str = "604134a,604135b,604134c,604134a,604134d,604134c,604134e,604134c,604134d,604134e,";
str = str.split(",").sort().join(" ");
document.write(str);
document.write("<BR>");
str = str.replace(/\b(.+) (\1 )+/g,"$1 ");
document.write(str)
</script>
建议这样写,看起来方便些
var str = "a,a,c,a,d,c,c,a,d,b,";
var str = "a,a,c,a,d,c,c,a,d,b,";
str = str.split(",").sort().join(" ");
document.write(str);
document.write("<BR>");
str = str.replace(/(\S+) (\1 ?)+/g,"$1 ");
document.write(str)
</script>
var str = "a,a,c,a,d,c,c,a,d,b,";
str = str.split(",").sort().join(",")+","; //加个逗号
document.write("*" + str + "*");
document.write("<BR>");
str = str.replace(/([^,]+,)\1+/g,"$1").replace(/^,/,"").replace(/,$/,""); //去掉首尾逗号
document.write("*" + str + "*")
</script>