最近在看go语言,对语法稍做了些了解,写个简单的猜数字小游戏来加深一下语法之印象。
package main //by kevin at 2014-04-15 01:30 //写我喜欢玩的猜数字游戏,初学go之第一个程序 import ( "fmt" "time" "math/rand" /*"os"*/ ) func rndnum() []int{ //使用string, 但是却因为其不可被修改,只好使用[] num_set := []int {0,1,2,3,4,5,6,7,8,9} sz := len(num_set) /*fmt.Println("sz:",sz)*/ for i,_ := range num_set { r := rand.Intn(sz) /*fmt.Println("i:",i," v:",v," r:",r) */ num_set[i], num_set[r] = num_set[r], num_set[i] } /*fmt.Println("num_set:", num_set) */ return num_set[0:4] } func checknum(n int, target []int) (right_ , miss_ int) { //将数字拆分成4个int[] num := []int {n/1000, (n%1000)/100, (n%100)/10, (n%10)} /*fmt.Println("num:", num) */ /*fmt.Println("target:", target) */ right := 0 //数字对且位置对 miss := 0 //数字对但是位置不对 for i,m := range num { for j,t := range target{ if m == t { if i == j { right++ } else{ miss++ } } } } return right, miss } func main() { //产生符合规则的数字 rand.Seed(time.Now().UnixNano()) num := rndnum() /*fmt.Println("num:", num) */ //开始准备猜数字 var right, miss int var guess_count int = 1 for right!=4 { fmt.Printf("%d Please input a number(0000-9999):", guess_count) var s int fmt.Scanf("%d\n", &s) //fmt.Println("you input is:", s) right, miss = checknum(s, num) /*fmt.Println("right:",right," miss:", miss)*/ fmt.Println("\t",s,"\t->\t", right,"A", miss, "B") guess_count++ } fmt.Println("Yes!!Number is ", num) }
玩一把就睡觉:
[kevin@kevinlin:~/go]$ ./guess
1 Please input a number(0000-9999):1234
1234 ->
0 A 1 B
2 Please input a number(0000-9999):5678
5678 ->
0 A 2 B
3 Please input a number(0000-9999):1208
1208 ->
0 A 2 B
4 Please input a number(0000-9999):3409
3409 ->
0 A 1 B
5 Please input a number(0000-9999):2067
2067 ->
0 A 2 B
6 Please input a number(0000-9999):6105
6105 ->
0 A 1 B
7 Please input a number(0000-9999):9826
9826 ->
2 A 2 B
8 Please input a number(0000-9999):8926
8926 ->
4 A 0 B
Yes!!Number is [8 9 2 6]。
接下来要试试goroutine之功能,还有rpc等~
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