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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                ## return,defer ,panic執行順序 1. return最先執行 2. 然后是panic執行,當發生了panic,那么會立刻調用defer函數,來尋找有沒有處理它的recover()函數,當沒有找到,就會繼續向上取尋找,如果都沒有的話,那么就輸出異常. 3. 最后是defer,如果有多個defer那么是按先進后出的方式執行. ~~~ defer func() { fmt.Println("打印前") }() defer func() { fmt.Println("打印中") }() defer func() { fmt.Println("打印后") }() panic("觸發異常") ~~~ 結果: ``` 打印后 打印中 打印前 panic: 觸發異常 //這里為什么是最后顯示呢? panic并不是最后執行,而是他沒有找到recover()函數,所以讓前面的defer中的println先執行了. ```
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                              哎呀哎呀视频在线观看