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package main import ( "fmt" ) func fullName(firstName *string, lastName *string) { if firstName == nil { panic("runtime error: first name cannot be nil") } if lastName == nil { panic("runtime error: last name cannot be nil") } fmt.Printf("%s %s\n", *firstName, *lastName) fmt.Println("returned normally from fullName") } func main() { firstName := "Elon" fullName(&firstName, nil) fmt.Println("returned normally from main") }
运行结果 :
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