[Python知识库]Python【乘法表】【数字金字塔】

1、乘法表

1）左下三角

print('*****Multiplication Table*****')
print('**|  1  2  3  4  5  6  7  8  9')
print('**|---------------------------')
for i in range(1,10):
      print(str(i)+' |',end="")
      for j in range(1,i+1):
          print(format(i*j, '3d'),end="")
      print()

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2）右上三角

print('*****Multiplication Table*****')
print('**|  1  2  3  4  5  6  7  8  9')
print('**|---------------------------')
for i in range(1,10):
      print(str(i)+' |',end="")
      for k in range(1,i):
          print(format("***"),end="")
      for j in range(i,10):
          print(format(i*j, '3d'),end="")
      print()

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2、数字金字塔

print('*****Number Pyramid*********')
for i in range(1,6):
    for j in range(5,i,-1):
        print(format("   "),end="")
    for j in range(i,0,-1):
        print(format(j, '3d'),end="")
    for j in range(2, i+1):
        print(format(j, "3d"),end="")
    print()

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