python基础练习题库实验3

题目1

编写一个程序，根据以下定价计算成本。

举个例子：

代码

items_num = input("Enter the number of items: ")
items_num_i = int(items_num)
items_num_s = str(items_num)
if 50 >= items_num_i >= 1:

    print("\nReceipt:")
    items_num_sum = items_num_i * 3
    items_num_sum_s = str(items_num_sum)
    print(items_num_s + " items" + " x " + "$3" + " = " + "$" + items_num_sum_s)
    print("Postage: $10")
    Total = items_num_sum + 10
    Total_s = str(Total)
    print("Total: " + "$" + Total_s)
elif items_num_i > 50:

    print("\nReceipt:")
    items_num_sum = items_num_i * 2
    items_num_sum_s = str(items_num_sum)
    print(items_num_s + " items" + " x " + "$2" + " = " + "$" + items_num_sum_s)
    print("Postage: $0")
    print("Total: " + "$" + items_num_sum_s)
else:
    print("please enter number again!")
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实验结果

题目2

编写一个程序，根据以下定价计算成本。

举个例子

代码

这次代码的命名用了abc，大家就凑合看一下吧😂

a=input("Enter the number of items: ")
d=input("Enter shipping method (s/r/e): ")
m=int(a)
b=str(a)
if m<=50 and m>=1:
    print("\nReceipt:")
    s=m*3
    ss=str(s)
    print(b+" items"+" x "+"$3"+" = "+"$"+ss)
    if d=="s":
        print("Standard post: $10")
        c=s+10
        cc=str(c)
        print("Total: "+"$"+cc)
    elif d=="r":
        print("Registered post: $15")
        c=s+15
        cc=str(c)
        print("Total: "+"$"+cc)
    elif d=="e":
        print("Express post: $20")
        c=s+20
        cc=str(c)
        print("Total: "+"$"+cc)
    else:
        print("please enter again!")
   
elif m>50:
   
    print("\nReceipt:")
    s=m*2
    ss=str(s)
    print(b+" items"+" x "+"$2"+" = "+"$"+ss)
    if d=="s":
        print("Standard post: $0")
        print("Total: "+"$"+ss)
    elif d=="r":
        print("Registered post: $10")
        c=s+10
        cc=str(c)
        print("Total: "+"$"+cc)
    elif d=="e":
        print("Express post: $17")
        c=s+17
        cc=str(c)
        print("Total: "+"$"+cc)
    else:
        print("please enter again!")
else:
    print("please enter number again!")
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实验结果

题目3

编写一个程序，要求用户输入四个整数，然后显示最小数字和最大数字。
举个例子

代码

num1 = int(input("Enter the first integer: "))
num2 = int(input("Enter the second integer: "))
num3 = int(input("Enter the third integer: "))
num4 = int(input("Enter the fourth integer: "))


minimum = min(num1, num2, num3, num4)
maximum = max(num1, num2, num3, num4)

smin=str(minimum)
smax=str(maximum)


print("\nThe minimum number is "+smin+" and the maximum number is "+smax + ".")
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实验结果

这里运用到了python的函数min()和max()

题目总结

🥞🥞本次实验主要练习if-elif-else,对于刚开始的学习的同学有一定的实验难度，需要多多练习。如果你也有好的题目可以跟我分享，我们一起讨论与进步吧！