摘要：
#include<stdio.h> /*使用n=strlen(s)时加这个#include<string.h>*/ int main(void) { char s[100];/*定义变量*/ int i, j, n, k; printf("请输入一串有重复字符的字符串:\n"); gets_s(s) 阅读全文
摘要：
#include<stdio.h> int main() { char s1[100] = "I "; char s2[100] = "am a student"; int i, j, n; for (i = 0; s1[i] != '\0'; i++) ; n = i; for (j = 0; s 阅读全文
摘要：
#include<stdio.h> int main() { int a[100] = { 1,3,5,6,10,15,20 }; int key, i, j; printf("请输入一个数\n"); scanf_s("%d", &key); for (i = 0; i < 7; i++) if ( 阅读全文