浅拷贝
1 # 浅拷贝只copy一层 2 3 s = [3,'Lucy',4,[1,2]] 4 s1 = s.copy() 5 print(id(s)) # 80065200 6 print(id(s1)) # 80007336 7 print(id(s[1])) # 78244096 8 print(id(s1[1])) # 78244096 9 print(id(s[3][1])) # 494851904 10 print(id(s1[3][1])) # 494851904
深拷贝
1 # 深拷贝——克隆一分 2 import copy 3 4 s = [3,'Lucy',4,[1,2]] 5 s2 = copy.deepcopy(s) 6 7 s2[2] = 5 8 s[3][1] = 6 9 print(s) # [3, 'Lucy', 4, [1, 6]] 10 print(s2) # [3, 'Lucy', 5, [1, 2]] 11 12 print(id(s)) # 81312784 13 print(id(s2)) # 81311504 14 15 print(id(s[0])) # 495703888 16 print(id(s2[0])) # 495703888 17 18 print(id(s[2])) # 501405536 19 print(id(s2[2])) # 501405552 20 print(id(s[3][1])) # 501405568 21 print(id(s2[3][1])) # 501405504
