如何在C＃中打印一颗星。

问题描述

******

*****

****

***

**

*

******
*****
****
***
**
*

推荐答案

class pyramid {

static void Main() {

/** Pyramid stars Looking down 
Comment this if u need only a upside pyramid **/

int row, i, j;

// Total number of rows
// You can get this as users input 
//row = Int32.Parse(Console.ReadLine());
row = 5; 

// To print odd number count stars use a temp variable
int temp;
temp = row;

// Number of rows to print 
// The number of row here is 'row'
// You can change this as users input 
for ( j = 1 ; j <= row ; j++ ) { 

// Printing odd numbers of stars to get 
// Number of stars that you want to print with respect to the value of "i"? 
for ( i = 1 ; i <= 2*temp - 1 ; i++ )
Console.Write("*");

// New line after printing a row 
Console.Write("\n");
for ( i = 1 ; i <= j ; i++ ) 
Console.Write(" ");

// Reduce temp value to reduce stars count 
temp--;
}

/** Pyramid stars Looking up 
Comment this if u need only a downside pyramid **/
int rowx, k, l;

// Total number of rows
// You can get this as users input 
// rowx = Int32.Parse(Console.ReadLine());
rowx = 5; 

// To print odd number count stars use a temp variable
int tempx;
tempx = rowx;

//Remove this if u use 
Console.Write("\n");

// Number of rows to print 
// The number of row here is 'rowx'

for ( l = 1 ; l <= rowx ; l++ ) {

// Leaving spaces with respect to row
for ( k = 1 ; k < tempx ; k++ )
Console.Write(" ");

// Reduce tempx value to reduce space(" ") count 
tempx--;

// Printing stars 
for ( k = 1 ; k <= 2*l - 1 ; k++ )
Console.Write("*"); 

// New line after printing a row 
Console.Write("\n");
} 
}
}

int stars = 10;
       for (int i = 0; i < stars; i++)
       {
           for (int j = i; j < stars; j++)
               Console.Write("*");
           Console.WriteLine();

       }
       Console.ReadLine();

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