Golang中功能范围的模拟

Question

Range in php http://php.net/manual/en/function.range.php To create such an array, need use a slice? I only know the method using the slice and loop for, but can there be another, more efficient way?

Answer 1

In golang, there is only one iteration construct and that's the for loop. There are multiple ways to configure the for loop itself, but overall there is just the single construct:

https://tour.golang.org/flowcontrol/1

https://play.golang.org/p/wBSGJqHuLK

The C method -- for i := 0; i < 10; i++ { }
The python method -- for k, v := range map[string]string{"key": "val"} { }
The python method -- for idx, val := range []string{"one", "two"} { }
The empty for -- for { }