Question

C语言编程 for循环 ．屏幕上输出如下图形: 1 12 123 1234 12345 123456

Answer 1

#include<stdio.h>
void main()
{
int i,j;
for(i=1;i<=6;i++)
{

for(j=1;j<=i;j++)
{
printf("%d",j);
}
printf("\n");

}
}

Answer 2

void disp()
{
/* code by paiduliwg */
int i,j;
for(i=1;i<6;i++)
{
j=i;
while(j--)printf("%d",i-j);
puts("\n");
}
}
/* you will get as following
1
12
123
1234
12345
123456
*/