01. 作用域和值类型引用类型的传递

 

1.01-作用域和值类型引用类型的传递

var num1 = 55;
var num2 = 66;//100

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