JS——编码，解码

来源：互联网发布：淘宝买家举证编辑：程序博客网时间：2024/05/22 15:46

1、有点笨的方法

var msg = "小笑哈";function encode(msg){ //编码 var code = "";for(var i=0;i<msg.length;i++){var ca = msg.charCodeAt(i);//不足5位，补足5位，加0/*if(ca < 10){  //遇不到这样的情况ca = "0000" + ca;}else*/if(ca < 100){ca = "000" + ca;}else if(ca < 1000){ca = "00" + ca;}/*else if(ca < 10000){ //遇不到这样的情况ca = "0" + ca;}*/code += ca;console.log(ca);}return code;}var code = encode(msg);console.log(code);function decode(code){ //解码var tmpStr = "";var result = "";for(var i=0;i<code.length;i++){tmpStr += code[i];if((i+1)%5==0){console.log(tmpStr);result += String.fromCharCode(tmpStr);tmpStr = "";}}return result;}var deMsg = decode(code);console.log("转换后的："+deMsg);

2、巧妙的方法

var msg = "小笑哈";function encode(msg){ //编码 var code = "";for(var i=0;i<msg.length;i++){var ca = msg.charCodeAt(i);//不足5位，补足5位，加0ca = (ca+100000+"").slice(1); //巧妙的处理方法code += ca;console.log(ca);}return code;}var code = encode(msg);console.log(code);function decode(code){ //解码var result = "";for(var i=0;i<code.length;i+=5){result += String.fromCharCode(code.slice(i,i+5));//result += String.fromCharCode(code.substring(i,i+5));//result += String.fromCharCode(code.substr(i,5)); //获取从i起5个...//code.substring(i,i+5)//code.substr(i,5)}return result;}var deMsg = decode(code);console.log("转换后的："+deMsg);

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