1 #include <stdio.h> 2 #include <stdlib.h> 3 4 /* run this program using the console pauser or add your own getch, system("pause") or input loop */ 5 int search(int key,int a[], int length);//函数声明 6 int main() { 7 int a[]={1,2,3,4,5,6,7,8,9,0,13,68,99}; 8 int x,b; 9 printf("请输入您要找的数\n"); 10 scanf("%d",&x); 11 b=search(x,a,sizeof(a)/sizeof(a[0])); 12 if(b==-1){ 13 printf("没有您要找的数"); 14 } 15 else{ 16 printf("你要找的数在%d",b); 17 } 18 return 0; 19 } 20 int search(int key,int a[],int length){ 21 int m=-1,i; 22 for(i=0;i<length;i++){ 23 24 if(key==a[i]){ 25 m=i+1; 26 break; 27 } 28 } 29 return m; 30 }
测试结果：
