python实现九九乘法表

1.左下角输出

1  for i in range(1,10):
2     for j in range(1,i+1):
3         print("%s*%s=%s"%(i,j,i*j),end=" ")
4     print()

2.左上角输出

for i in range(1,10):
    for j in range(i,10):
        print("%s*%s=%s"%(i,j,i*j),end=" ")
    print()

3.右上角

1 for i in range(1,10):
2     for k in range(1,i):
3         print(end="       ")
4     for j in range(i,10):
5         print("%d*%d=%d"%(i,j,i*j),end=" ")
6     print("")

4.右下角

1 for i in range(1,10):
2     for k in range(1,10-i):
3         print(end=" "*7)
4     for j in range(1,i+1):
5         print("%d*%d=%d"%(i,j,i*j),end=" ")
6     print()