Golang闭包从范围中捕获错误的值
问题描述：
下面的测试代码:
func main() {
lans := [5]string{"java", "python", "erlang", "cpp", "go"}
fin := make(chan bool)
for _, l := range(lans) {
go func() {
fmt.Println(l)
}()
}
<- fin
}
我认为输出将是:java，python，erlang，cpp，go；但是输出是:去吧去吧去吧;怎么了?
I think the output will be: java, python, erlang, cpp, go; but the output is: go go go go go; what's wrong here?
答
只需编写这样的函数，即可将动词 l 捕获到函数中
just write the function like this, to catch the verb l into function
go func(l string) {
fmt.Println(l)
}(l)