class Solution: def compare(self , version1: str, version2: str) -> int: # write code here ver1 = list(version1.split('.')) ver2 = list(version2.split('.')) ver1_len = len(ver1) ver2_len = len(ver2) # 补齐两个数组的长度，便于比较 for i in range(ver2_len): ver1.append(0) for i in range(ver1_len): ver2.append(0) for i in range(len(ver1)): if int(ver1[i]) < int(ver2[i]): return -1 if int(ver1[i]) > int(ver2[i]): return 1 return 0