例如一个变量tai_num,它的值可能为1,2,3,4,我要怎么在wxml中循环它
例如wx:for="{{4}}"可以输出四条内容
wx:for="{{tai_num}}"怎么写让他输出四条呢
例如一个变量tai_num,它的值可能为1,2,3,4,我要怎么在wxml中循环它
例如wx:for="{{4}}"可以输出四条内容
wx:for="{{tai_num}}"怎么写让他输出四条呢
For example, a variable Tai_ Num, whose value may be 1, 2, 3, 4. How can I loop it in wxml? For example, Wx: for = {4}} can output four items of content, Wx: for = {Tai_ How to write "num}}" to let him output four
回答:
<view wx:for="{{tai_num}}">{{item}}</view>
this.setData({ tai_num: 4})
原文出处:如何循环一个数字变量?
// page.wxml tai_num=4: 1,2,3,4 tai_num=3: 1,2,3<view wx:for="{{tai_num}}" wx:key="index">{{item + 1}}</view>// page.jsPage({ data: { tai_num: 4 }})