汉字转utf-8的js代码

<script>
function UTF8UrlEncode(input)
{
 var output = "";
 var currentChar = '';
 
 for(var counter = 0; counter < input.length; counter++)
 {
  currentChar = input.charCodeAt(counter);
  
  if((48 <= currentChar) && (currentChar <= 57))
   output = output + input.charAt(counter);
  else if((65 <= currentChar) && (currentChar <= 90))
   output = output + input.charAt(counter);
  else if((97 <= currentChar) && (currentChar <= 122))
   output = output + input.charAt(counter);
  else
   output =  output + UTF8UrlEncodeChar(currentChar);
 }
 return output;
}

function UTF8UrlEncodeChar(input)
{
 if(input <= 0x7F) return "%" + input.toString(16);

 var leadByte = 0xFF80; var hexString = ""; var leadByteSpace = 5;
 while(input > (Math.pow(2, leadByteSpace + 1) - 1))
 {
  hexString = "%" + ((input & 0x3F) | 0x80).toString(16) + hexString;
  leadByte = (leadByte >> 1);
  leadByteSpace--;
  input = input >> 6;
 }
 return ("%" + (input | (leadByte & 0xFF)).toString(16) + hexString).toUpperCase();
}

//下面是测试

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Tags: 汉字转utf-8汉字转utf-8