Python 打印左箭头数字图案程序

使用 for 循环编写一个 Python 程序来打印左箭头数字图案。

rows = int(input("Enter Left Arrow of Numbers Pattern Rows = "))

print("====The Left Arrow Numbers Pattern====")

for i in range(rows, 0, -1):
    for j in range(i, 0, -1):
        print(j, end = ' ')
    print()
    
for i in range(2, rows + 1):
    for j in range(i, 0, -1):
        print(j, end = ' ')
    print()

这个 Python 示例 使用 while 循环打印数字图案的左箭头。

rows = int(input("Enter Left Arrow of Numbers Pattern Rows = "))

print("====The Left Arrow Numbers Pattern====")
i = rows

while(i >= 1):
    j = i
    while(j >= 1):
        print(j, end = ' ')
        j = j - 1
    print()
    i = i - 1

i = 2   
while(i <= rows):
    j = i
    while(j >= 1):
        print(j, end = ' ')
        j = j - 1
    print()
    i = i + 1

Enter Left Arrow of Numbers Pattern Rows = 12
====The Left Arrow Numbers Pattern====
12 11 10 9 8 7 6 5 4 3 2 1 
11 10 9 8 7 6 5 4 3 2 1 
10 9 8 7 6 5 4 3 2 1 
9 8 7 6 5 4 3 2 1 
8 7 6 5 4 3 2 1 
7 6 5 4 3 2 1 
6 5 4 3 2 1 
5 4 3 2 1 
4 3 2 1 
3 2 1 
2 1 
1 
2 1 
3 2 1 
4 3 2 1 
5 4 3 2 1 
6 5 4 3 2 1 
7 6 5 4 3 2 1 
8 7 6 5 4 3 2 1 
9 8 7 6 5 4 3 2 1 
10 9 8 7 6 5 4 3 2 1 
11 10 9 8 7 6 5 4 3 2 1 
12 11 10 9 8 7 6 5 4 3 2 1