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getApp(Object object)
data-*
的命名与使用wx:key
的值以两种形式提供wx:key
的意义wx:for
的值为字符串时,会将字符串解析成字符串数组wx:if
vs hidden
bind
绑定catch
绑定:TypeError: wx.getMenuButtonBoundingClientRect is not a function
无效的page.json
typeError: Cannot read property 'mark' of undefined
Some selectors are not allowed in component wxss, including tag name selectors, ID selectors, and attribute selectors
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