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2.Èç¹ûÃÜÂëÖ»ÓÉÊý×Ö¡¢Ð¡Ð´×Öĸ¡¢´óд×Öĸ»òÆäËüÌØÊâ·ûºÅµ±ÖеÄÒ»ÖÖ×é³É,ÔòÈÏΪÕâÊÇÒ»¸öÈõÃÜÂë.
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<script language=javascript>
//CharModeº¯Êý
//²âÊÔij¸ö×Ö·ûÊÇÊôÓÚÄÄÒ»Àà.
function CharMode(iN){
if (iN>=48 && iN <=57) //Êý×Ö
return 1;
if (iN>=65 && iN <=90) //´óд×Öĸ
return 2;
if (iN>=97 && iN <=122) //Сд
return 4;
else
return 8; //ÌØÊâ×Ö·û
}
//bitTotalº¯Êý
//¼ÆËã³öµ±Ç°ÃÜÂëµ±ÖÐÒ»¹²ÓжàÉÙÖÖģʽ
function bitTotal(num){
modes=0;
for (i=0;i<4;i++){
if (num & 1) modes++;
num>>>=1;
}
return modes;
}
//checkStrongº¯Êý
//·µ»ØÃÜÂëµÄÇ¿¶È¼¶±ð
function checkStrong(sPW){
if (sPW.length<=4)
return 0; //ÃÜÂëÌ«¶Ì
Modes=0;
for (i=0;i<sPW.length;i++){
//²âÊÔÿһ¸ö×Ö·ûµÄÀà±ð²¢Í³¼ÆÒ»¹²ÓжàÉÙÖÖģʽ.
Modes|=CharMode(sPW.charCodeAt(i));
}
return bitTotal(Modes);
}
//pwStrengthº¯Êý
//µ±Óû§·Å¿ª¼üÅÌ»òÃÜÂëÊäÈë¿òʧȥ½¹µãʱ,¸ù¾Ý²»Í¬µÄ¼¶±ðÏÔʾ²»Í¬µÄÑÕÉ«
function pwStrength(pwd){
O_color="#eeeeee";
L_color="#FF0000";
M_color="#FF9900";
H_color="#33CC00";
if (pwd==null||pwd==''){
Lcolor=Mcolor=Hcolor=O_color;
}
else{
S_level=checkStrong(pwd);
switch(S_level) {
case 0:
Lcolor=Mcolor=Hcolor=O_color;
case 1:
Lcolor=L_color;
Mcolor=Hcolor=O_color;
break;
case 2:
Lcolor=Mcolor=M_color;
Hcolor=O_color;


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