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20191021作业
王长中的博客
Original
670 people have browsed it

javascript基础知识点练习:

1,变量,语句,表达式:

实例

<script>
var age=18;
console.log('我的年龄'+age+'岁')
if (age>20){
console.log('我可以结婚了')
else
{
console.log('还得等两年')
}
</script>

运行实例 »

点击 "运行实例" 按钮查看在线实例

E225[MGXC3PL4C75157L%QX.png

2,函数定义及调用,匿名函数

Y74]~0$V@VJAN$9LG(HHZLF.png

9W1OGOC0U_9F1@OQ{1U6T17.png

注意:匿名函数不能单独存在;当将匿名函数赋值给一个变量,在调用这个变量时,变量名后面要加上();


Correction status:qualified

Teacher's comments:学好js, 一定要理解表达式的概念
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