row = int(input('请输入行数: '))

for row in range(1,row):

    for col in range (1,row+1):

        print( (col),end='')

    print()

for i in range(row):

    for _ in range(i + 1):

        print('*', end='')

    print()

for row in range(1,6):

    for col in range(65,65+row):

        print(chr(col),end='')

    print()

for row in range(0,6):

    for col in range(0,row):

        print(chr(row+64),end='')

    print()

for i in range(row):

    for j in range(row):

        if j < row - i - 1:

            print(' ', end='')

        else:

            print('*', end='')

    print()

for i in range(row):

    for _ in range(row - i - 1):

        print(' ', end='')

    for _ in range(2 * i + 1):

        print('*', end='')

    print()

结果：

请输入行数: 5

1

12

123

1234

*

**

***

****

A

AB

ABC

ABCD

ABCDE

A

BB

CCC

DDDD

EEEEE

    *

   **

  ***

 ****

*****

    *

   ***

  *****

 *******

*********