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                panic和recover === ### Panic - 用戶不可恢復的錯誤 - panic 推出前會執行defer指定的內容 ~~~ func division(a,b int) int { if b == 0 { panic("b = 0") } c := int(a / b) return c } func TestDivision(t *testing.T) { i := division(1, 0) fmt.Println(i) } ~~~ ### recover 用戶錯誤恢復 ``` defer func() { if err != recover();err!=nil{ // 恢復代碼 } } ``` ~~~ func division(a,b int) int { if b == 0 { panic("b = 0") } c := int(a / b) return c } func TestDivision(t *testing.T) { defer func() { if err := recover();err != nil { fmt.Println(err) } }() i := division(1, 0) fmt.Println(i) } ~~~ 注意:如果沒有處理好,就會形成僵尸服務進程
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