구구단 짜기

일반 구구단
for i in range(1,9+1):
    for j in range(1,9+1):
        print("{} * {} ={}".format(i,j,i*j))

 

짝수 구구단
for i in range(2,9+1):
    if i % 2 == 1:
          continue
    for j in range(1,9+1):
        print("{} * {} ={}".format(i,j,i*j))

 

 

메서드 구구단! 
def showdan(dan):
    print("{}*{}={}".format(dan,1,dan*1))
    print("{}*{}={}".format(dan,2,dan*2))
    print("{}*{}={}".format(dan,3,dan*3))
    print("{}*{}={}".format(dan,4,dan*4))
    print("{}*{}={}".format(dan,5,dan*5))
    print("{}*{}={}".format(dan,6,dan*6))
    print("{}*{}={}".format(dan,7,dan*7))
    print("{}*{}={}".format(dan,8,dan*8))
    print("{}*{}={}".format(dan,9,dan*9))
    
    
showdan(2)
showdan(5)
showdan(9)