输入:
1.输入单个整数
n = int(input())
2.一行有多个整数时
eg:输入2 3
M,N=input().split()
#M=2 N=3 类型为str
a = list(map(int, input().split()))
#[2, 3]
s = input()
s = [i for i in s.split()]
print(s)
#['2', '3']
nums = [int(i) for i in input().split()]
#[2, 3]
a,b = map(int, input().split())
#a=2 b=3
#<class 'int'>
输出:
print('{} {}'.format(a, b))
a = [1, 2, 3, 4]
for i in a:
print(i, end=' ')