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      Node.js ERR_MULTIPLE_CALLBACK

      Node.js ERR_MULTIPLE_CALLBACK

      A callback was called more than once.

      A callback is almost always meant to only be called once as the query can either be fulfilled or rejected but not both at the same time. The latter would be possible by calling a callback more than once.

      回调几乎总是只调用一次,因为查询既可以被满足也可以被拒绝,但不能同时被调用。 后者可以通过不止一次调用回调来实现。


      更多内容请参考:Node.js Error 异常,或者通过 点击对应菜单 进行查看;


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