程序打印菱形
原文:https://www . geesforgeks . org/c-program-print-diamond-shape/
给定一个数字 n，编写一个程序来打印一个 2n 行的菱形。 例:
C++
// C++ program to print diamond shape
// with 2n rows
#include <bits/stdc++.h>
using namespace std;
// Prints diamond pattern with 2n rows
void printDiamond(int n)
{
int space = n - 1;
// run loop (parent loop)
// till number of rows
for (int i = 0; i < n; i++)
{
// loop for initially space,
// before star printing
for (int j = 0;j < space; j++)
cout << " ";
// Print i+1 stars
for (int j = 0; j <= i; j++)
cout << "* ";
cout << endl;
space--;
}
// Repeat again in reverse order
space = 0;
// run loop (parent loop)
// till number of rows
for (int i = n; i > 0; i--)
{
// loop for initially space,
// before star printing
for (int j = 0; j < space; j++)
cout << " ";
// Print i stars
for (int j = 0;j < i;j++)
cout << "* ";
cout << endl;
space++;
}
}
// Driver code
int main()
{
printDiamond(5);
return 0;
}
// This is code is contributed
// by rathbhupendra
C
// C program to print
// diamond shape with
// 2n rows
#include<stdio.h>
// Prints diamond
// pattern with 2n rows
void printDiamond(int n)
{
int space = n - 1;
// run loop (parent loop)
// till number of rows
for (int i = 0; i < n; i++)
{
// loop for initially space,
// before star printing
for (int j = 0;j < space; j++)
printf(" ");
// Print i+1 stars
for (int j = 0;j <= i; j++)
printf("* ");
printf("\n");
space--;
}
// Repeat again in
// reverse order
space = 0;
// run loop (parent loop)
// till number of rows
for (int i = n; i > 0; i--)
{
// loop for initially space,
// before star printing
for (int j = 0; j < space; j++)
printf(" ");
// Print i stars
for (int j = 0;j < i;j++)
printf("* ");
printf("\n");
space++;
}
}
// Driver code
int main()
{
printDiamond(5);
return 0;
}
Java 语言(一种计算机语言，尤用于创建网站)
// JAVA Code to print
// the diamond shape
import java.util.*;
class GFG
{
// Prints diamond pattern
// with 2n rows
static void printDiamond(int n)
{
int space = n - 1;
// run loop (parent loop)
// till number of rows
for (int i = 0; i < n; i++)
{
// loop for initially space,
// before star printing
for (int j = 0; j < space; j++)
System.out.print(" ");
// Print i+1 stars
for (int j = 0; j <= i; j++)
System.out.print("* ");
System.out.print("\n");
space--;
}
// Repeat again in
// reverse order
space = 0;
// run loop (parent loop)
// till number of rows
for (int i = n; i > 0; i--)
{
// loop for initially space,
// before star printing
for (int j = 0; j < space; j++)
System.out.print(" ");
// Print i stars
for (int j = 0; j < i; j++)
System.out.print("* ");
System.out.print("\n");
space++;
}
}
// Driver Code
public static void main(String[] args)
{
printDiamond(5);
}
}
// This code is contributed
// by Arnav Kr. Mandal.
Python 3
# Python program to
# print Diamond shape
# Function to print
# Diamond shape
def Diamond(rows):
n = 0
for i in range(1, rows + 1):
# loop to print spaces
for j in range (1, (rows - i) + 1):
print(end = " ")
# loop to print star
while n != (2 * i - 1):
print("*", end = "")
n = n + 1
n = 0
# line break
print()
k = 1
n = 1
for i in range(1, rows):
# loop to print spaces
for j in range (1, k + 1):
print(end = " ")
k = k + 1
# loop to print star
while n <= (2 * (rows - i) - 1):
print("*", end = "")
n = n + 1
n = 1
print()
# Driver Code
# number of rows input
rows = 5
Diamond(rows)
C
// C# Code to print
// the diamond shape
using System;
class GFG
{
// Prints diamond pattern
// with 2n rows
static void printDiamond(int n)
{
int space = n - 1;
// run loop (parent loop)
// till number of rows
for (int i = 0; i < n; i++)
{
// loop for initially space,
// before star printing
for (int j = 0; j < space; j++)
Console.Write(" ");
// Print i+1 stars
for (int j = 0; j <= i; j++)
Console.Write("* ");
Console.Write("\n");
space--;
}
// Repeat again in
// reverse order
space = 0;
// run loop (parent loop)
// till number of rows
for (int i = n; i > 0; i--)
{
// loop for initially space,
// before star printing
for (int j = 0; j < space; j++)
Console.Write(" ");
// Print i stars
for (int j = 0; j < i; j++)
Console.Write("* ");
Console.Write("\n");
space++;
}
}
// Driver Code
public static void Main()
{
printDiamond(5);
}
}
// This code is contributed
// by Smitha Semwal.
服务器端编程语言（Professional Hypertext Preprocessor 的缩写）
<?php
// PHP program to print
// diamond shape with
// 2n rows
// Prints diamond $
// pattern with 2n rows
function printDiamond($n)
{
$space = $n - 1;
// run loop (parent loop)
// till number of rows
for ($i = 0; $i < $n; $i++)
{
// loop for initially space,
// before star printing
for ($j = 0;$j < $space; $j++)
printf(" ");
// Print i+1 stars
for ($j = 0;$j <= $i; $j++)
printf("* ");
printf("\n");
$space--;
}
// Repeat again in
// reverse order
$space = 0;
// run loop (parent loop)
// till number of rows
for ($i = $n; $i > 0; $i--)
{
// loop for initially space,
// before star printing
for ($j = 0; $j < $space; $j++)
printf(" ");
// Pr$i stars
for ($j = 0;$j < $i;$j++)
printf("* ");
printf("\n");
$space++;
}
}
// Driver code
printDiamond(5);
// This code is contributed by Anuj_67
?>
java 描述语言
<script>
// JavaScript program to print diamond shape
// with 2n rows
// Prints diamond pattern with 2n rows
function printDiamond(n) {
var space = n - 1;
// run loop (parent loop)
// till number of rows
for (var i = 0; i < n; i++) {
// loop for initially space,
// before star printing
for (var j = 0; j < space; j++) document.write(" ");
// Print i+1 stars
for (var j = 0; j <= i; j++) document.write("*" + " ");
document.write("<br>");
space--;
}
// Repeat again in reverse order
space = 0;
// run loop (parent loop)
// till number of rows
for (var i = n; i > 0; i--)
{
// loop for initially space,
// before star printing
for (var j = 0; j < space; j++) document.write(" ");
// Print i stars
for (var j = 0; j < i; j++) document.write("*" + " ");
document.write("<br>");
space++;
}
}
// Driver code
printDiamond(5);
// This code is contributed by rdtank.
</script>
输出:
*
* *
* * *
* * * *
* * * * *
* * * * *
* * * *
* * *
* *
*
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