//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()); //105console.log(a.charCodeAt().toString(2)); //1101001

　　

var a = "我";console.log(a.charCodeAt()); //25105console.log(a.charCodeAt().toString(2)); //110001000010001

　　

var a = "我们";console.log(a.length); //2var 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

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