写法1:
#税
s = float(input())
if s <= 2000:
print("Isento")
elif 3000 >= s >= 2000.01:
X = (s - 2000.01)*0.08
print("R$ %.2f"%X)
elif 4500.00 >= s >= 3000.01:
X = (s - 3000.01)*0.18 + (1000*0.08)
print("R$ %.2f"%X)
else:
X = (s - 4500.00)*0.28 + (1000*0.08) + (1500*0.18)
print("R$ %.2f"%X)
写法2:
x = float(input())
tot = 0
if x > 4500:
tot += (x - 4500) * 0.28
x = 4500
if x > 3000:
tot += (x - 3000) * 0.18
x = 3000
if x > 2000:
tot += (x - 2000) * 0.08
x = 2000
if tot == 0:
print("Isento")
else:
print("R$ %.2f" % tot)
#游戏时间2
a,b,c,d = map(int,input().split())
start = a * 60 + b
end = c * 60 + d
# 当结束时间和开始时间位于同一天的时候
if end > start :
x = (end - start) / 60
y = (end - start) % 60
# 当结束时间和开始时间不是同一天的时候
if end <= start :
x = (24 * 60 - start + end) / 60
y = (24 * 60 - start + end) % 60
print("O JOGO DUROU %d HORA(S) E %d MINUTO(S)"%(x,y))
#求解一元二次方程的根
a,b,c =map(float,input().split())
if b ** 2 - 4 * a * c < 0 or a == 0 :
print("Impossivel calcular")
else:
R1 = (-b + (b ** 2 - 4 * a * c)**0.5 ) / (2 * a)
R2 = (-b - (b ** 2 - 4 * a * c)**0.5 ) / (2 * a)
print("R1 = %.5f"%R1)
print("R2 = %.5f"%R2)
#求列表中所有元素之和
def sum_list(lst):
total = 0
for num in lst:
total += num
return total
my_list = [1, 2, 3, 4, 5, 7.5]
print(sum_list(my_list)) # 输出22.5
函数知识点👉🔗:http://t.csdnimg.cn/Xs52R
#递归
def list_sum(num_list):
if len(num_list) == 1:
return num_list[0]
else:
return num_list[0] + list_sum(num_list[1:])
print(list_sum([1, 2, 3, 4, 5, 7.5]))