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报过好多次这种错误
[Vue warn]: Error in callback for watcher "data": "TypeError: Cannot set property '_isHover' of null"
found in
---> <Table>
TypeError: Cannot set property '_isHover' of null
at VueComponent.eval (iview.js?f489:22929)
at Array.forEach (<anonymous>)
at VueComponent.makeObjData (iview.js?f489:22925)
at VueComponent.handler (iview.js?f489:23076)
at Watcher.run (vue.runtime.esm.js?3a00:3345)
at flushSchedulerQueue (vue.runtime.esm.js?3a00:3087)
at Array.eval (vue.runtime.esm.js?3a00:1916)
at flushCallbacks (vue.runtime.esm.js?3a00:1835)
从几次调数据的情况看,是赋值了一个undefined