matlab指定位置的元素置为空

>> a_23=[2,3,4,5,10]

a_23 =

2 3 4 5 10

>> a_23(2)=[]

a_23 =

2 4 5 10

 

>> a_23=[2,3,4,5,10]

a_23 =

2 3 4 5 10

a_23([1,2,3])=[]

a_23 =

5 10