When Vue3 asynchronously requests background data, the page does not display or the page has no data when rendering

Page data printing is a proof that the interface has acquired the data.

 

 reactive() should be responsive to update data in real time, but the data is printed but the page is not rendered, only the push() method is added to the data

 

 

Now the page has rendered the data 

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Origin blog.csdn.net/k490031/article/details/129809361