Go-以相同顺序多次遍历地图

Question

How can I loop through a map on a constant order multiple times ?

In my go code I am looping through a map twice but the values are not appearing on the same order on both loops :

fieldMap := map[string]int{...}

First loop :

for k, _ := range fieldMap {...}

Second loop :

for _, v := range fieldMap {...}

Answer 1

Save the keys in the first loop and use them in the second loop:

keys := make([]string, 0, len(m))
for k, v := range m {
    fmt.Println(k, v)
    keys = append(keys, k)
}
for _, k := range keys {
    fmt.Println(k, m[k])
}

Playground: http://play.golang.org/p/MstH20wkNN.