关于字符串的几个有用函数

测试字符串长度（中英文）

function strLen(s)

{

var istrstrstrnLen;

str = svalue;

nLen = ;

for(i=;i<=strlength;i++)

{

str=strsubstring(ii)

str=escape(str);

if(strlength>)

{

nLen = nLen + ;

}

else

{

nLen = nLen + ;

}

}

return nLen;

}

替换

function Replace(sss)

{

var len len i;

var str str ;

str = s;

len = strlength;

len = slength;

if (len > len)

return s;

for (i=;i<= lenlen+ ; i++)

{

str = strsubstring(ii+len);

if (str == s)

{

str = strsubstring(i) + s + strsubstring(i+lenlen );

i = ;

len = strlength;

}

}

return str;

}

查找

function Pos(ss)

{

var len len iflag;

var str str ;

str = s;

len = strlength;

len = slength;

if (len== || len==)

return ;

flag = false;

if (len > len)

return s;

for (i=;i<= lenlen+ ; i++)

{

str = strsubstring(ii+len);

if (str == s)

{

flag = true;

break;

}

}

if (flag)

return i;

else

return ;

}

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