JS获取字符串实际长度
var jmz = {};
jmz.GetLength = function(str) {
///<summary>获得字符串实际长度，中文2，英文1</summary>
///<param name="str">要获得长度的字符串</param>
var realLength = 0, len = str.length, charCode = -1;
for (var i = 0; i < len; i++) {
charCode = str.charCodeAt(i);
if (charCode >= 0 && charCode <= 128) realLength += 1;
else realLength += 2;
}
return realLength;
};
执行代码：
alert(jmz.GetLength('测试测试ceshiceshi));
效果截图：
18
