python之深淺拷貝

import copy
 husband = ['xiaohu',123,[15000,9000]]
 wife =husband.copy()
 wife[0] = 'xiaopang'
 wife[1] =345
 print(wife)
 ['xiaopang', 345, [15000, 9000]]
 xiaosan =copy.deepcopy(husband)
 xiaosan[0] = 'xiaojin'
 xiaosan[1] = 668
 xiaosan[2][1] -= 1999
  print(xiaosan)
['xiaojin', 668, [15000, 7001]]