JS字符串与二进制相互转化转换
发布时间：2018-01-02, 18:06:55 分类：HTML | 编辑 off 网址 | 辅助
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//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);Run code
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十进制转二进制
var a = "i";
console.log(a.charCodeAt()); //105
console.log(a.charCodeAt().toString(2)); //1101001Run code
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var a = "我";
console.log(a.charCodeAt()); //25105
console.log(a.charCodeAt().toString(2)); //110001000010001Run code
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var a = "我们";
console.log(a.length); //2
var list = a.split("");
console.log(list.length); //2<br>console.log(a.charCodeAt().toString(2)); //110001000010001 100111011101100Run code
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//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("@%$+")); //1000000 100101 100100 101011
//将二进制字符串转换成Unicode字符串
function binaryToStr(str){
var result = [];
var list = str.split(" ");
for(var i=0;i<list.length;i++){
var item = list[i];
var asciiCode = parseInt(item,2);
var charValue = String.fromCharCode(asciiCode);
result.push(charValue);
}
return result.join("");
}
console.log(binaryToStr("110001000010001 100111011101100")); //我们
console.log(binaryToStr("1000000 100101 100100 101011")); //@%$+ Run code
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