移除回车换行等字符

转自：http://dev.mjxy.cn/a-Javascript-Remove-control-character-from-string.aspx

// Remove control character from a string

function removeNL(s)
{
     // NewLine, CarriageReturn and Tab characters from a String
     // will be removed and will return the new string

     r = "";
     for (i = 0; i < s.length; i++)
     {
         if (s.charAt(i) != '\n' & s.charAt(i) != '\r' & s.charAt(i) != '\t') {
             r += s.charAt(i);
         }
     }

     return r;
}

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