核心代碼:
var jmz = {}; jmz.GetLength = function(str) {
///<summary>獲得字符串實際長度,中文2,英文1</summary>
///<param name="str">要獲得長度的字符串</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;
};
執行代碼:
alert(jmz.GetLength('測試測試ceshiceshi));
效果截圖:
方法二:
var blen = 0;
for(i=0; i<l; i++) {
if ((str.charCodeAt(i) & 0xff00) != 0) {
blen ++;
}
blen ++;
}