实例如下：

<script>var symbols = " !\"#$%&'()*+,-./0123456789:;<=>?@";var loAZ = "abcdefghijklmnopqrstuvwxyz";symbols+= loAZ.toUpperCase();symbols+= "[\\]^_`";symbols+= loAZ;symbols+= "{|}~";//Hex to ASCIIfunction toAscii(str){ valueStr = str.toLowerCase(); var hex = "0123456789abcdef"; var text = ""; var i=0; for( i=0; i<valueStr.length; i=i+2 ) { var char1 = valueStr.charAt(i); if ( char1 == ':' ) { i++; char1 = valueStr.charAt(i); } var char2 = valueStr.charAt(i+1); var num1 = hex.indexOf(char1); var num2 = hex.indexOf(char2); var value = num1 << 4; value = value | num2; var valueInt = parseInt(value); var symbolIndex = valueInt - 32; var ch = '?'; if ( symbolIndex >= 0 && value <= 126 ) { ch = symbols.charAt(symbolIndex) } text += ch; } return text;}//ASCII to Hexfunction toHex(str){ var valueStr = str; var hexChars = "0123456789abcdef"; var text = ""; for( i=0; i<valueStr.length; i++ ) { var oneChar = valueStr.charAt(i); var asciiValue = symbols.indexOf(oneChar) + 32; var index1 = asciiValue % 16; var index2 = (asciiValue - index1)/16; if ( text != "" ) text += ":"; text += hexChars.charAt(index2); text += hexChars.charAt(index1); } return text;}</script>

以上就是小编为大家带来的javascript ASCII和Hex互转的实现方法全部内容了，希望大家多多支持~