Python 打印字母 R 星形图案程序

本文展示了如何使用 for 循环、while 循环和函数以及示例编写一个 Python 程序来打印字母 R 星形图案。

下面的字母 R 星形图案示例接受用户输入的行数,并且嵌套的 for 循环迭代这些行。elif 条件用于在几个所需位置打印星号,以获得字母 R 星形图案并跳过其他。

rows = int(input("Enter Alphabet R of Stars Rows = "))
print("====The Alphabet R Star Pattern====")

for i in range(rows):
    for j in range(rows):
        if i == 0 and 0 < j < rows - 1:
            print("*", end="")
        elif i != 0 and j == 0:
            print("*", end="")
        elif i == rows // 2 and j != rows - 1:
            print("*", end="")
        elif i != 0 and j == rows - 1 and i < rows // 2:
            print("*", end="")
        elif i == j and i >= rows // 2:
            print("*", end="")
        else:
            print(end=" ")
    print()
Enter Alphabet R of Stars Rows = 9
====The Alphabet R Star Pattern====
 ******* 
*       *
*       *
*       *
******** 
*    *   
*     *  
*      * 
*       *

下面的代码减少了打印字母 R 星形图案的 else if 条件的数量。我们添加了额外的空格,使(R)看起来更好。

rows = int(input("Enter Alphabet R of Stars Rows = "))
print("====The Alphabet R Star Pattern====")

for i in range(rows):
    for j in range(rows):
        if (i == 0 or i == rows // 2) and 0 < j < rows - 1:
            print("*", end=" ")
        elif i != 0 and (j == 0 or (j == rows - 1 and i < rows // 2)):
            print("*", end=" ")
        elif i == j and i >= rows // 2:
            print("*", end=" ")
        else:
            print(" ", end=" ")
    print()
Python Program to Print Alphabetical R Star Pattern

使用 while 循环打印字母 R 星形图案的 Python 程序

此程序使用 while 循环来迭代字母 R 图案的行,并在所需位置打印星号,而不是使用 For 循环。更多星形图案程序 >> 点击这里

rows = int(input("Enter Alphabet R of Stars Rows = "))

i = 0
while i < rows:
    j = 0
    while j < rows:
        if (i == 0 or i == rows // 2) and 0 < j < rows - 1:
            print("*", end=" ")
        elif i != 0 and (j == 0 or (j == rows - 1 and i < rows // 2)):
            print("*", end=" ")
        elif i == j and i >= rows // 2:
            print("*", end=" ")
        else:
            print(" ", end=" ")
        j += 1
    print()
    i += 1
Enter Alphabet R of Stars Rows = 12
  * * * * * * * * * *   
*                     * 
*                     * 
*                     * 
*                     * 
*                     * 
* * * * * * * * * * *   
*             *         
*               *       
*                 *     
*                   *   
*                     * 

在此程序示例中,我们创建了一个 RPattern 函数,该函数接受行数和要打印的符号或字符,以打印给定符号的字母 R 图案。

def RPattern(rows, ch):
    for i in range(rows):
        for j in range(rows):
            if (i == 0 or i == rows // 2) and 0 < j < rows - 1:
                print('%c' %ch, end=' ')
            elif i != 0 and (j == 0 or (j == rows - 1 and i < rows // 2)):
                print('%c' %ch, end=' ')
            elif i == j and i >= rows // 2:
                print('%c' %ch, end=' ')
            else:
                print(" ", end=" ")
        print()


row = int(input("Enter Alphabet R of Stars Rows = "))
sy = input("Symbol for R Star Pattern = ")
RPattern(row, sy)
Enter Alphabet R of Stars Rows = 15
Symbol for R Star Pattern = @
  @ @ @ @ @ @ @ @ @ @ @ @ @   
@                           @ 
@                           @ 
@                           @ 
@                           @ 
@                           @ 
@                           @ 
@ @ @ @ @ @ @ @ @ @ @ @ @ @   
@               @             
@                 @           
@                   @         
@                     @       
@                       @     
@                         @   
@                           @