思路为将nums1中的0换为nums2的数
随后对nums2进行排序
class Solution:
def merge(self, nums1: List[int], m: int, nums2: List[int], n: int) -> None:
"""
Do not return anything, modify nums1 in-place instead.
"""
b=0
for i in range(m,len(nums1)):
nums1[i]=nums2[b]
b=b+1
nums1.sort()