8.全局函数

参见与:W3C javascript.chm ---> JavaScript 全局对象参考手册

//参见于:w3cjavascript.chm-->JavaScript全局对象参考手册

//encodeURI以及encodeURIComponent方法
/*var uri = "https://www.baidu.com?key=小林&age=18";

var euri = encodeURI(uri);
console.log(euri);//https://www.baidu.com?key=%E5%B0%8F%E6%9E%97&age=18

var ecuri = encodeURIComponent(uri);
console.log(ecuri);

//解码decodeURI以及decodeURIComponent;
console.log(decodeURI(euri));
console.log(decodeURIComponent(ecuri));*/


//parseInt 以及 parseFloat
//将一床对应的字符串转换成int
var intNum = parseInt("123.45");
console.log(intNum);
console.log(typeof intNum);

var folatNum = parseFloat("123.45");
console.log(folatNum);
console.log(typeof folatNum);



//eval方法
var js = "alert('将字符串直接转换成js代码')";
eval(js);