c语言问题 求解 谢大神

Asterisk printing2
• Write a program that outputs a triangle with a '*' character
Input the Height repeatedly using the While statement • Output a '*' character using the For statement

先让用户输入行数，获取这个输入的变量，将他赋值给for循环的i，然后for循环输出星花

int height;
while( true )
{
printf("Height: ");
if( 1 == scanf("%d",&height) )
{
for( int i = height;i > 0;--i)
{
for(int j = 0; j <= i-1;++j)
printf("*");
printf("\n");
}
printf(">>>=====================RESTART=====================\n");
}
else
fflush(stdin);
}

#include <stdio.h>
#include <stdlib.h>

/* print rectangular triangle */
int print_rec_triangle( int iHeight );
int print_rec_triangle_r( int iHeight );
/* print equicrural triangle */
int print_equ_triangle( int iHeight );
int print_equ_triangle_r( int iHeight );

int
main( void )
{
        int iHeight = 0;

        do
        {
                printf( "please input the triangle height you want: " );
                scanf( "%d", &iHeight );
                if( iHeight > 0 )
                {
                        printf( "\nrectangular triangle:\n" );
                        print_rec_triangle( iHeight );
                        printf( "\nrectangular triangle reverse:\n" );
                        print_rec_triangle_r( iHeight );
                        printf( "\nequicrural triangle:\n" );
                        print_equ_triangle( iHeight );
                        printf( "\nequicrural triangle reverse:\n" );
                        print_equ_triangle_r( iHeight );
                }
                putchar( '\n' );
        }while( iHeight > 0 );

        return 0;
}

static int
print_blank( int iBlank )
{
        int i = 0;
        for( i = 0; i < iBlank; i++ )
        {
                putchar( ' ' );
        }
        return 0;
}

int 
print_rec_triangle_r( int iHeight )
{
        int i = 0;
        int j = 0;
        for( i = iHeight; i > 0; i-- )
        {
                for( j = 1; j <= i; j++ )
                {
                            putchar( '*' );
                }
                putchar( '\n' );
        }

        return 0; 
}

int
print_rec_triangle( int iHeight )
{
        int i = 0;
        int j = 0;
        for( i = 0; i < iHeight; i++ )
        {
                for( j = 0; j <= i; j++ )
                {
                            putchar( '*' );
                }
                putchar( '\n' );
        }

        return 0; 
}

int
print_equ_triangle( int iHeight )
{
        int iBlank = iHeight - 1;
        int i = 0;
        int j = 0;

        for( i = 1; i <= iHeight; i++ )
        {
                print_blank( iBlank ); 
                for( j = 1; j <= 2 * i - 1; j++ )
                {
                        putchar( '*' );
                }
                putchar( '\n' );
                iBlank--;
        }
        return 0;
}

int
print_equ_triangle_r( int iHeight )
{
        int iBlank = 0;
        int i = 0;
        int j = 0;

        for( i = iHeight; i >= 1; i-- )
        {
                print_blank( iBlank ); 
                for( j = 1; j <= 2 * i - 1; j++ )
                {
                        putchar( '*' );
                }
                putchar( '\n' );
                iBlank++;
        }
        return 0;
}

你把楼上的稍微改改，不就行了么

#include

void main()
{
int i,j,height;
printf("please enter height:");
scanf("%d",&height);
printf("Height:%d\n",height);
for(i=0;i {
for(j=height-i;j>0;j--)
{
printf("*");
}
printf("\n");
}
}

#include

void main()
部分为:

 #include <stdio.h>

void main()

 #include<stdio.h>
void main(){
     int h = 0;
     int i = 0;
     int j = 0;
    scanf("%d",&h);
    //打印h行
    for(i = 0; i < h ; i ++）{
        //每行打印h - i个*
        for(j = 0; j < h - 1 ; j ++ ){
            printf("*");
        }
        printf("\n");
    }
}