01字面量和变量.py

print(True-1)
print(False+1)
print("i like Python")
num = 114514#变量必须赋值了之后才能使用
print(num)
num = "wifi"
print(num)
num = True
print(num)
#同一个变量可以存储不同类型的数
me,u = 1,0#一次定义多个变量
print("me的值:",me,"u的值：",u)
#变量交换
a = 10
b = 20
c = a
a = b
b = c
print(a,b)
print(isinstance(True,float))
print(isinstance(1001,int))#一个函数哦
print(type("dad"))
s = """         
        hello
        this is your first python program
        have a good time
"""
print(s)
s1 = "人生苦短"
s2 = "我用Python"
print(s1+","+s2)