2-21 复合类型综合练习
package main import ( "fmt" "math/rand" "time" ) var names []string func main() { Addstudent("张三丰", "老四", "王老五", "东邪", "西毒", "白景琦", "臭老九", "王石") fmt.Println(names) scoreMap := TakeExam(names...) fmt.Println(scoreMap) showRanking(scoreMap) } func Addstudent(AddComers ...string) { names = append(names, AddComers...) } func TakeExam(name... string)(scoreMap map[string]int) { scoreMap = make(map[string]int) for _, name := range names{ randint := Randint(100) scoreMap[name] = randint } return } //对map里面的人进行排序 func showRanking(scoreMap map[string]int) { names := make([]string, 0) for name ,_ :=range scoreMap{ names = append(names, name) } for i := 0; i < len(names)-1; i++ { for j := i+1;j <= len(names) ;j++ { if scoreMap[names[j]] > scoreMap[names[i]]{ names[i],names[j] = names[j],names[i] } } } for index, name :=range names{ fmt.Printf("第%d名:%-6s \t %-3d\n",index+1,names[index],scoreMap[name]) } } func Randint(n int) int { time.Sleep(time.Nanosecond) r := rand.New(rand.NewSource(time.Now().UnixNano())) return r.Intn(n + 1) }