Determine whether the login name, user name, and sort number exist in the database

Others 2022-04-28 07:20:40 views: 0

Two methods:

1. Send the tuserlist obtained by the back-end to the front-end, and then traverse the front-end for comparison.

2. Set k at the back end, k=1, k=2, k=3, compare them separately, and then send this value to the front end. . . .

This is the background.

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