#include<stdio.h> main() { int n; scanf("%d",&n); for(int i=1;i<=n;i++) { for(int j=1;j<=5-i;j++) { printf(" "); } for(int k=1;k<=2*i-1;k++) { printf("*"); } printf("\n"); } for(i=1;i<=n-1;i++) //此处不用定义i,若果定义了则为重定义 { for(int j=1;j<=i;j++)//此处应定义j { printf(" "); } for(int k=1;k<=9-2*i;k++)//此处应定义k { printf("*"); } printf("\n"); } } /* Main.c:2:1: warning: return type defaults to 'int' main() ^ Main.c: In function 'main': Main.c:18:6: error: 'i' undeclared (first use in this function) for(i=1;i<=n-1;i++) //此处不用定义i,若果定义了则为重定义 ^ Main.c:18:6: note: each undeclared identifier is reported only once for each function it appears in */ |
Double click to view unformatted code.