JavaScript 基础练习一

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原文地址：https://blog.csdn.net/weixin_42787326/article/details/81315788

JavaScript 基础练习一

1.计算最终的结果，练习逻辑

var num1 = 10;
var num2 = num1;
num1 = 20;
console.log(num1);//20
console.log(num2);//10

var num = 50;
function f1(num) {
    num = 60;
    console.log(num);//60
}
f1(num);
console.log(num);//50

var num1 = 55;
var num2 = 66;
function f1(num, num1) {
    num = 100;
    num1 = 100;
    num2 = 100;
    console.log(num);//100
    console.log(num1);//100
    console.log(num2);//100
}

f1(num1, num2);

console.log(num1);//55
console.log(num2);//100
//console.log(num);// 报错

function Person(name,age,salary) {
    this.name = name;
    this.age = age;
    this.salary = salary;
}
function f1(person) {
    person.name = "ls";
    person = new Person("aa",18,10);
}

var p = new Person("zs",18,1000);
console.log(p.name);//zs
f1(p);
console.log(p.name);//ls

2.

。。。补充

 

JavaScript基础练习一

博客地址：https://blog.csdn.net/weixin_42787326/article/details/81315788