duandingcu7010 2014-05-27 03:33
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golang-为什么++和-在表达式中不起作用?

What we take for granted in other languages and almost expect it to work in go, won't work - its almost so natural to do this, so why isn't the compiler happy? Just feeling like bailing out of go sometimes.

The only way to increment the value is to put it in its own separate line?

http://play.golang.org/p/_UnpZVSN9n

package main

import "fmt"
import "strconv"

func main() {
    a := 1
    //Evaluate expression and pass into function - won't work
    fmt.Println(strconv.Itoa(a++))
    //Braces around a++ also won't work
    fmt.Println(strconv.Itoa((a++)))
}
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  • dongzhang1839 2014-05-27 03:37
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    ++ and -- are statements in golang, not expressions

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