如果我将golang的增量乘以for循环不增加

Question

I was assuming I can use any operator to increment the incrementing variable in for loop. Looks like it's not the case. Following code loops for ever.

import (
    "fmt"
)

func main() {
    for i:=0; i<10; i=i*2{
    fmt.Println(i)
    }
}

go playground

Following code works fine.

import (
    "fmt"
)

func main() {
    for i:=0; i<10; i=i+2{
    fmt.Println(i)
    }
}

Answer 1

Your loop starts at i := 0, so you are just continuously doing i := 0 * 2, so you get an infinite loop (as you should), since 0 < 10 and i never actually gets bigger.