//字符串转ascii码,用charCodeAt(); //ascii码转字符串,用fromCharCode(); var str = "A"; var code = str.charCodeAt(); var str2 = String.fromCharCode(code);
十进制转二进制
var a = "i"; console.log(a.charCodeAt()); //105 console.log(a.charCodeAt().toString(2)); //1101001
var a = "我"; console.log(a.charCodeAt()); //25105 console.log(a.charCodeAt().toString(2)); //110001000010001
var a = "我们"; console.log(a.length); //2 var list = a.split(""); console.log(list.length); //2
console.log(a.charCodeAt().toString(2)); //110001000010001 100111011101100
//将字符串转换成二进制形式,中间用空格隔开 function strToBinary(str){ var result = []; var list = str.split(""); for(var i=0;i<list.length;i++){ if(i != 0){ result.push(" "); } var item = list[i]; var binaryStr = item.charCodeAt().toString(2); result.push(binartStr); } return result.join(""); } console.log(strToBinary("我们")); //110001000010001 100111011101100 console.log(strToBinary("@%$+")); //1000000 100101 100100 101011 //将二进制字符串转换成Unicode字符串 function binaryToStr(str){ var result = []; var list = str.split(" "); for(var i=0;i<list.length;i++){ var item = list[i]; var asciiCode = parseInt(item,2); var charValue = String.fromCharCode(asciiCode); result.push(charValue); } return result.join(""); } console.log(binaryToStr("110001000010001 100111011101100")); //我们 console.log(binaryToStr("1000000 100101 100100 101011")); //@%$+
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