Python面试题汇总

1、深拷贝题目

def func(arg,li=[]):
	li.append(arg)
	return li
	
v1 = func(1)
print(v1)
v2 = func(2,[])  #开僻了一块内存空间（第1块内存空间，第2块内存空间）
print(v2)
v3 = func(3) #所以这里就是:[11,999,33,44,55]

print(v3)
 n1 = [11,22,33,44,55]
 n2 = n1 n3 = n1[:]
 n1[0] = 666
 n3[1] = 999 
print(n1) 
print(n2)
print(n3)

答案：

[666,22,33,44,55]
[666,22,33,44,55]
[11,999,33,44,55]