微信小程序wx:for定义数组

微信小程序中的wx:for是一个用来循环数组的指令。可以通过wx:for属性来指定要循环的数组名称，同时可以使用wx:for-item属性来定义循环过程中每个元素的变量名，使用wx:for-index属性来定义索引值的名称。通过wx:for指令，可以方便地遍历数组的每个元素并对其进行操作或展示。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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