Python 打印空心矩形星形图案程序

编写一个Python程序，使用For循环和While循环打印空心矩形星形图案，并附有示例。

Python 打印空心矩形星形图案程序（For 循环）

此 Python 程序允许用户输入矩形所需的总行数和列数。接下来，我们使用 Python 嵌套 For 循环来迭代每一行和每一列的值。在 For 循环中，我们使用了 If Else 语句：如果行或列元素为 0 或最大值 - 1，则 Python 打印 *；否则，打印空格。

# Python Program to Print Hollow Rectangle Star Pattern

rows = int(input("Please Enter the Total Number of Rows  : "))
columns = int(input("Please Enter the Total Number of Columns  : "))

print("Hollow Rectangle Star Pattern") 
for i in range(rows):
    for j in range(columns):
        if(i == 0 or i == rows - 1 or j == 0 or j == columns - 1):
            print('*', end = '  ')
        else:
            print(' ', end = '  ')
    print()

Python 打印空心矩形星形示例 2

此 Python 程序允许用户输入自己的字符。接下来，它会打印用户指定字符的空心矩形图案。

# Python Program to Print Hollow Rectangle Star Pattern

rows = int(input("Please Enter the Total Number of Rows  : "))
columns = int(input("Please Enter the Total Number of Columns  : "))
ch = input("Please Enter any Character  : ")

print("Hollow Rectangle Star Pattern") 
for i in range(rows):
    for j in range(columns):
        if(i == 0 or i == rows - 1 or j == 0 or j == columns - 1):
            print('%c' %ch, end = '  ')
        else:
            print(' ', end = '  ')
    print()

Please Enter the Total Number of Rows  : 12
Please Enter the Total Number of Columns  : 20
Please Enter any Character  : #
Hollow Rectangle Star Pattern
#  #  #  #  #  #  #  #  #  #  #  #  #  #  #  #  #  #  #  #  
#                                                        #  
#                                                        #  
#                                                        #  
#                                                        #  
#                                                        #  
#                                                        #  
#                                                        #  
#                                                        #  
#                                                        #  
#                                                        #  
#  #  #  #  #  #  #  #  #  #  #  #  #  #  #  #  #  #  #  #  
>>> 

Python 使用 While 循环打印空心矩形星形程序

这个空心矩形星形程序与第一个示例相同。但是，我们用 While 循环替换了 For 循环。

# Python Program to Print Hollow Rectangle Star Pattern

rows = int(input("Please Enter the Total Number of Rows  : "))
columns = int(input("Please Enter the Total Number of Columns  : "))

print("Hollow Rectangle Star Pattern") 
i = 0
while(i < rows):
    j = 0
    while(j < columns):
        if(i == 0 or i == rows - 1 or j == 0 or j == columns - 1):
            print('*', end = '  ')
        else:
            print(' ', end = '  ')
        j = j + 1
    i = i + 1
    print()

Please Enter the Total Number of Rows  : 10
Please Enter the Total Number of Columns  : 22
Hollow Rectangle Star Pattern
*  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  
*                                                              *  
*                                                              *  
*                                                              *  
*                                                              *  
*                                                              *  
*                                                              *  
*                                                              *  
*                                                              *  
*  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *  
>>>