练习1：英制单位与公制单位互换
代码语言：javascript复制"""
英制单位英寸和公制单位厘米互换
Version: 0.1
Author: 骆昊
Date: 2018-02-28
"""
value = float(input('请输入长度: '))
unit = input('请输入单位: ')
if unit == 'in' or unit == '英寸':
print('%f英寸 = %f厘米' % (value, value * 2.54))
elif unit == 'cm' or unit == '厘米':
print('%f厘米 = %f英寸' % (value, value / 2.54))
else:
print('请输入有效的单位')练习2：掷骰子决定做什么
代码语言：javascript复制"""
掷骰子决定做什么事情
Version: 0.1
Author: 骆昊
Date: 2018-02-28
"""
from random import randint
face = randint(1, 6)
if face == 1:
result = '唱首歌'
elif face == 2:
result = '跳个舞'
elif face == 3:
result = '学狗叫'
elif face == 4:
result = '做俯卧撑'
elif face == 5:
result = '念绕口令'
else:
result = '讲冷笑话'
print(result)**说明：**上面的代码中使用了random模块的randint函数生成指定范围的随机数来模拟掷骰子。
练习3：百分制成绩转等级制
代码语言：javascript复制"""
百分制成绩转等级制成绩
90分以上 --> A
80分~89分 --> B
70分~79分 --> C
60分~69分 --> D
60分以下 --> E
Version: 0.1
Author: 骆昊
Date: 2018-02-28
"""
score = float(input('请输入成绩: '))
if score >= 90:
grade = 'A'
elif score >= 80:
grade = 'B'
elif score >= 70:
grade = 'C'
elif score >= 60:
grade = 'D'
else:
grade = 'E'
print('对应的等级是:', grade)练习4：输入三条边长如果能构成三角形就计算周长和面积
代码语言：javascript复制"""
判断输入的边长能否构成三角形
如果能则计算出三角形的周长和面积
Version: 0.1
Author: 骆昊
Date: 2018-02-28
"""
import math
a = float(input('a = '))
b = float(input('b = '))
c = float(input('c = '))
if a b > c and a c > b and b c > a:
print('周长: %f' % (a b c))
p = (a b c) / 2
area = math.sqrt(p * (p - a) * (p - b) * (p - c))
print('面积: %f' % (area))
else:
print('不能构成三角形')**说明：**上面的代码中使用了
math模块的sqrt函数来计算平方根。用边长计算三角形面积的公式叫做海伦公式。
练习5：实现一个个人所得税计算器。
代码语言：javascript复制"""
输入月收入和五险一金计算个人所得税
Version: 0.1
Author: 骆昊
Date: 2018-02-28
"""
salary = float(input('本月收入: '))
insurance = float(input('五险一金: '))
diff = salary - insurance - 3500
if diff <= 0:
rate = 0
deduction = 0
elif diff < 1500:
rate = 0.03
deduction = 0
elif diff < 4500:
rate = 0.1
deduction = 105
elif diff < 9000:
rate = 0.2
deduction = 555
elif diff < 35000:
rate = 0.25
deduction = 1005
elif diff < 55000:
rate = 0.3
deduction = 2755
elif diff < 80000:
rate = 0.35
deduction = 5505
else:
rate = 0.45
deduction = 13505
tax = abs(diff * rate - deduction)
print('个人所得税: ￥%.2f元' % tax)
print('实际到手收入: ￥%.2f元' % (diff 3500 - tax))**说明：**上面的代码中使用了Python内置的
abs()函数取绝对值来处理-0的问题。
