输入输出（IO函数）

(1)输出函数（IO函数;输入input 输出output）

print("hello world")

x =  10
print(x)

y = 100
z = 1000
print(x,y)
print(x,y,sep(","))

print("yuan",end=" ")
print("rain",sep(" "))

 

(2)输入函数

# username = "yuan"
# password = "123"

username = input("用户名:")
password = input("密码:")

print("ok")
# print(username == "rain" and password == "123")