陷入Golang [重复]

I'm new to Golang and I found that the switch case statement doesn't need a break statement to stop evaluating the cases.

So, I wanna know how to implement this fallthrough behavior in go?

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There is exactly a fallthrough statement for this.

See this example:

fmt.Println("First round: without fallthrough")
switch 1 {
case 0:
    fmt.Println(0)
case 1:
    fmt.Println(1)
case 2:
    fmt.Println(2)
case 3:
    fmt.Println(3)
}

fmt.Println("Second round: with fallthrough")
switch 1 {
case 0:
    fmt.Println(0)
    fallthrough
case 1:
    fmt.Println(1)
    fallthrough
case 2:
    fmt.Println(2)
    fallthrough
case 3:
    fmt.Println(3)
}

Output (try it on the Go Playground):

First round: without fallthrough
1
Second round: with fallthrough
1
2
3

(Note that I did not use a fallthrough statement in the last case, as that would be a compile time error: "cannot fallthrough final case in switch".)