//GBK字符集实际长度计算functiongetStrLeng(str){varrealLength=0;varlen=str.length;varcharCode=-1;for(vari=0;i<len;i++){charCode=str.charCodeAt(i);if(charCode>=0&&charCode<=128){realLength+=1;}else{//如果是中文则长度加2realLength+=2;}}returnrealLength;}

//UTF8字符集实际长度计算functiongetStrLeng(str){varrealLength=0;varlen=str.length;varcharCode=-1;for(vari=0;i<len;i++){charCode=str.charCodeAt(i);if(charCode>=0&&charCode<=128){realLength+=1;}else{//如果是中文则长度加3realLength+=3;}}returnrealLength;}