1. Want to get the background data, but the foreground can"t call it. If you write a simple test and still can"t get the data, you can directly prompt that the data loading failed
.
1. Want to get the background data, but the foreground can"t call it. If you write a simple test and still can"t get the data, you can directly prompt that the data loading failed
.
alert ("data load failed"). It should be the failure of the ajax request. Ask your backend
you didn't return the data at the end
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