python应用-打印各种形状图

   

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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     *    **   ***  **** *****     *    ***   *****  ******* *********