9.14python

九九乘法表

for i in range(1, 10):
    for j in range(1, i + 1):
        print(f"{j}*{i}=%-3d" % (i * j), end="")
    if j == i:
        print("\n", end="")

逢7拍手

for i in range(1, 100):
    f = 0
    if i % 7 == 0:  # 倍数
        f = 1
        #print("a")
    elif i // 10 == 7:  # 十位
        f = 1
        #print("c")
    elif i % 10 == 7:  # 个位
        f = 1
        #print("b")

    if f == 1:
        print(i)

房贷计算器

# 月供 mopay 贷款金额 money 月利率 x  期限 ddl 还款总额 paysum 支付利息 pay
# int贷款金额money  期限ddl 种类type
# 月供
money = int(input("请输入贷款金额：（万元）"))
ddl = int(input("请输入还款期限：（年）"))
type_ = int(input("请输入贷款种类：(商业:1/公积金:2）"))
if type_ == 1:
    if ddl <= 5:
        x = 0.0475/12
    else:
        x = 0.049/12
elif type_ == 2:
    if ddl <= 5:
        x = 0.0275/12
    else:
        x = 0.0325/12
else:
    print("种类错误")
mopay = money * (x * (1 + x) ** (ddl * 12)) / (((1 + x) ** (ddl * 12)) - 1)
paysum = mopay * ddl * 12
pay = paysum - money

print(f"每月月供参考：{mopay},还款总额：{paysum},支付利息：{pay}")