英文:
"used as value" in function call
问题
在条件语句中评估函数值时，调用函数的正确方式是什么？
package main
import "fmt"
func main(){
if sumThis(1,2) > sumThis(3,4){
fmt.Println("test")
} else {
fmt.Println("derp")
}
}
func sumThis(a, b int){
return a+b
}
这会返回错误：
./test4.go:4: sumThis(1, 2) used as value
./test4.go:4: sumThis(3, 4) used as value
./test4.go:11: too many arguments to return
你会如何在Go中编写这段代码？
英文:
What's the proper way of calling functions when evaluating their values in conditional statements?
package main
import "fmt"
func main(){
if sumThis(1,2) > sumThis(3,4){
fmt.Println("test")
} else {
fmt.Println("derp")
}
}
func sumThis(a, b int){
return a+b
}
this returns error:
./test4.go:4: sumThis(1, 2) used as value
./test4.go:4: sumThis(3, 4) used as value
./test4.go:11: too many arguments to return
How would you write this in Go?
答案1
得分: 228
你忘记声明返回值了。应该是：
func sumThis(a, b int) int {
// ...
英文:
You've forgotten to declare a return value. It should be:
func sumThis(a, b int) int {
// ...
通过集体智慧和协作来改善编程学习和解决问题的方式。致力于成为全球开发者共同参与的知识库，让每个人都能够通过互相帮助和分享经验来进步。
评论