python基础语法笔记总结（未完待续）

1.输入

password = input("请输入n")
print("密码是%s" %password)

2.多个变量赋值

num, float, str = 20, 0.5, 'zhangsan'
print(num)
print(float)
print(str)

3.if else

age = int(input("请输入n"))
if age >18:
    print("1")
else:
    print("2")

4.if elif

age2 = int(input("请输入n"))
if age2 >18:
    print("1")
elif age2<18:
    print("2")

5.if嵌套

age = int(input("请输入n"));
if age > 18:
	print("1")
	if age > 20:
		print("2")
	else:
		print("3")
else:
	print("4")