在golang中找到最小值？

In the language there is a minimum function https://golang.org/pkg/math/#Min But what if I have more than 2 numbers? I must to write a manual comparison in a for loop, or is there another way? The numbers are in the slice.

No, there isn't any better way than looping. Not only is it cleaner than any other approach, it's also the fastest.

values := []int{4, 20, 0, -11, -10}

min := values[0]
for _, v := range values {
        if (v < min) {
            min = v
        }
}

fmt.Println(min)

EDIT

Since there has been some discussion in the comments about error handling and how to handle empty slices, here is a basic function that determines the minimum value. Remember to import errors.

func Min(values []int) (min int, e error) {
    if len(values) == 0 {
        return 0, errors.New("Cannot detect a minimum value in an empty slice")
    }

    min = values[0]
    for _, v := range values {
            if (v < min) {
                min = v
            }
    }

    return min, nil
}

You should write a loop. It does not make sense to create dozens of function in standard library to find min/max/count/count_if/all_of/any_of/none_of etc. like in C++ (most of them in 4 flavours according arguments).