class Solution:
def isRectangleCover(self, rectangles: List[List[int]]) -> bool:
new =[[]]
for i in range(len(rectangles)): #遍历坐标
rectangles[i][0] = new[2*i][0]
rectangles[i][1] = new[2*i][1]
rectangles[i][2] = new[2*i + 1][0]
rectangles[i][3] = new[2*i + 1][1]
rectangles = [[1,1,3,3],[3,1,4,2],[3,2,4,4],[1,3,2,4],[2,3,3,4]],每一行是两个坐标,我想把他直接切成单个坐标放在new里,却出现了list index out of range, 不能理解,求解答