1.常规型。

#常规型i=1while  i<=9:    j=1    while  j<=i:        print(''%d*%d=%2d''%(i,j,i*j),end='')    i+=1#等号只是用来分割开，看的还清楚些print('=========================')#倒常规型i=1while  i<=9:    k=1    while k<=9-i:        print('       ',end='')        k+=1    j=1    while  j<=i:        print(''%d*%d=%2d''%(i,j,i*j),end='')    i+=1

2.反常规型

#反常规型i = 9while i>=1:    j=1    while j<=i:        print("%d*%d=%2d "%(i,j,i*j),end='')        j+=1    print()    i-=1#不想说第二遍print('===================')#倒反常规型i = 9while i>=1:    k=1    while k<=9-i:        print('       ',end='')        k+=1    j=1    while j<=i:        print("%d*%d=%2d "%(i,j,i*j),end='')        j+=1    print()    i-=1