# 打印乘法口诀表到文件 chengfa.txt

fp = open (r'd:\python\chengfa.txt','a+')

# 内容追加方式打开/创建chengfa.txt文件

print (" "*25 + "乘  法  口  诀  表\n", file = fp)

# 向文件中增加标题

for H in range (1,10):    # 给乘法口诀表行赋值

    for L in range (1,H+1):         # 给乘法口诀表列赋值

        print (str(L) + "×" + str(H) + "=" + str(L*H) + "\t" ,end='', file = fp)

    print ("\n", file = fp)

# 向乘法口诀表中增加内容

fp.close()    # 关闭已打开的文件