变量与表达式（顺序结构程序）

# 1.变量定义与赋值

myInt001 = 15

myDouble001 = 2019.1026

myString001 = "World"

myBoolean001 = False

print(myInt001)

print(myDouble001)

print(myString001)

print(myBoolean001)

# 2.常量定义与赋值

# python没有专门定义常量的方式，通常使用大写变量名表示仅仅是一种提示效果,本质上还是变量

# NAME = 'Tony'

# 3. 变量的数学与逻辑计算

myInt002 = 10

myDouble002 = 3.1415926

myString002 = "Hello"

myBoolean002 = True

myInt003 = myInt001 + myInt002

print("结果是：", myInt003)

myDouble003 = myDouble002 - myDouble001

myInt003 = myInt001 * myInt002

myInt003 = myInt001 / myInt002

myInt003 = myInt001 % myInt002#取余

myInt003 = myInt001 ** 2#乘方

myInt003 += myInt001#与下一行等价

myInt003=myInt003+myInt001

myInt001 += 1

myString003 = myString001 + myString002

myBoolean003 = myDouble002 > myDouble001

myBoolean003 = myDouble002 == myDouble001#=表示赋值，==表示判断是否相等

myBoolean003 = myDouble002 != myDouble001

myBoolean003 = myBoolean001 and myBoolean002

myBoolean003 = myBoolean001 or myBoolean002

myBoolean003 = not myBoolean001

# 数学计算函数

import math

import random

myDouble003 = math.exp(1)#e的1次方

myDouble003 = math.pi#Π

myDouble003 = math.sin(30 * math.pi / 180)

myDouble003 = abs(-13.25)#取绝对值

myDouble003 = max(myDouble001, myDouble002)

myDouble003 = random.random()#0-1随机数

myDouble003 = random.random() * (100 - 10+1) + 10#10-100随机数

# 数据类型转换

myInt006 = 123

myString006 = "213"

myInt005 = int(myString006)

myString005 = str(myInt006)

myDouble006 = 321.321

myInt005 = int(myDouble006)

a=1