js 值传递和引用传递_综合

<!DOCTYPE html>
<html><head><meta charset="utf-8"><title>值传递和引用传递</title><script type="text/javascript">var a = 12;function fun1(a){
    a = a+1;}fun1(a);console.log(a)    // 12function fun2(){
    a = a+1;}fun2(a);console.log(a) //13function fun3(a){
    a = a+1;return a;}fun3(a);console.log(a) // 13var obj = {
    name:'张三'};function fun4(){
    console.log(obj.name)}fun4(obj) //张三function fun5(){
    obj.name = "李四";console.log(obj.name)}fun5(obj) //李四function fun6(obj){
    obj.name = "赵六";console.log(obj.name)}fun6(obj) //赵六</script></head><body></body>
</html>