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                            ## vue路由的鉤子函數有哪些，什么情況用
首頁可以控制導航跳轉，beforeEach，afterEach等，一般用于頁面title的修改。一些需要登錄才能調整頁面的重定向功能。

**beforeEach**主要有3個參數to，from，next：

**to**：route即將進入的目標路由對象，

**from**：route當前導航正要離開的路由

**next**：function一定要調用該方法resolve這個鉤子。執行效果依賴next方法的調用參數。可以控制網頁的跳轉
                    
                
        
                
            
        
                
    
                
    
                
        
                
    
                

                







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