对python中数组的del,remove,pop区别详解

> a=[1,2,3] 
> a.remove(2) 
> a 
[1, 3] 
> a=[1,2,3] 
> del a[1] 
> a 
[1, 3] 
> a= [1,2,3] 
> a.pop(1) 
2 
> a 
[1, 3] 
> 

> a = [0, 2, 2, 3] 
> a.remove(2) 
> a 
[0, 2, 3] 

> a = [3, 2, 2, 1] 
> del a[1] 
[3, 2, 1] 

> a = [4, 3, 5] 
> a.pop(1) 
3 
> a 
[4, 5] 

> a = [4, 5, 6] 
> a.remove(7) 
Traceback (most recent call last): 
 File "<stdin>", line 1, in <module> 
ValueError: list.remove(x): x not in list 
> del a[7] 
Traceback (most recent call last): 
 File "<stdin>", line 1, in <module> 
IndexError: list assignment index out of range 
> a.pop(7) 
Traceback (most recent call last): 
 File "<stdin>", line 1, in <module> 
IndexError: pop index out of range