package main
import "fmt"
func main(){
	for i := 0; i < 4; i++ {
		for j := 0; j < 10 ; j++ {
			if j == 2 {
				continue
			}
		fmt.Println("j=", j)
		}
	}
}
/*
j= 0
j= 1
j= 3
j= 4
j= 5
j= 6
j= 7
j= 8
j= 9
j= 0
j= 1
j= 3
j= 4
j= 5
j= 6
j= 7
j= 8
j= 9
j= 0
j= 1
j= 3
j= 4
j= 5
j= 6
j= 7
j= 8
j= 9
j= 0
j= 1
j= 3
j= 4
j= 5
j= 6
j= 7
j= 8
j= 9
*/

package main
import "fmt"
func main(){
	var m float64 = 100000
	var n int = 0
	for {
		if m > 50000 {
			m *= 0.95
		} else {
			m -= 1000
			if m < 1000 {
				break
			}
		}
		n++
	}
	fmt.Println("可以通過%v次路口",n)
}

goto label 
...
label:startement

package main
import "fmt"
func main(){
	var n int = 30
	fmt.Println("1")
	if n > 20 {
		goto label1
	}
	fmt.Println("2")
	fmt.Println("3")
	fmt.Println("4")
	label1:
	fmt.Println("5")
	fmt.Println("6")
	fmt.Println("7")
}
/*
1
5
6
7
*/