#定义一个行的变量row = 1
while row <=5 :
    #定义一个列的变量
    col = 1
    while col <= row:
        #end=""不换行
        print("*",end="")
        col += 1
    row += 1
    #前面循环用了不换行，这边需要输出换行
    print("")

row = 1while row <= 9:    col = 1
    while col <= row:
        print(" %d * %d =%d" % (col, row,row * col),end="\t")
        col += 1
    row += 1
    print("")