golang資料結構之map篇

package mainimport ("github.com/sanity-io/litter")func main() {var mapInt = make(map[int]int)// addfor i := 1; i < 10; i++ {mapInt[i] = i}litter.Dump(mapInt)// updatemapInt[3] = 0litter.Dump(mapInt)// deldelete(mapInt, 3)litter.Dump(mapInt)// del when iteratorfor k, v := range mapInt {if v % 2 == 0 {delete(mapInt, k)}}litter.Dump(mapInt)// queryv, ok := mapInt[9]if ok {litter.Dump(v, "is exist!")}}outputmap[int]int{  1: 1,  2: 2,  3: 3,  4: 4,  5: 5,  6: 6,  7: 7,  8: 8,  9: 9,}map[int]int{  1: 1,  2: 2,  3: 0,  4: 4,  5: 5,  6: 6,  7: 7,  8: 8,  9: 9,}map[int]int{  1: 1,  2: 2,  4: 4,  5: 5,  6: 6,  7: 7,  8: 8,  9: 9,}map[int]int{  1: 1,  5: 5,  7: 7,  9: 9,}9 "is exist!"