将空格插入char数组

I have char array(vector) of chars and I want to insert white spaces in specific order.

我有字符的char数组(向量),我想按特定顺序插入空格。

For example I have

比如我有

 ['A','B','C','D','E','F','G','H','J','K','L','M','N','O']

and vector with indexes of white spaces

和矢量与白色空间的索引

[7 12] % white spaces should be add to 7 and 12 indexes (original string)

and want to have

并希望拥有

 ['A','B','C','D','E','F',' ','G','H','J','K', 'L', ' ','M','N','O']

Is there some build-in function? I started with nested loop to itarate the array and instert ' ', but it looks ugly.

有一些内置功能吗?我开始使用嵌套循环来itarate数组和instert'',但它看起来很难看。

2 个解决方案

#1

If you have indices into your vector where you want the blanks to be inserted, you could do the following:

如果您的向量中有索引,您希望插入空格,则可以执行以下操作:

>> str = 'ABCDEFGHJKLMNO';                %# Your string
>> index = [7 12];                        %# Indices to insert blanks
>> index = index+(0:numel(index)-1);      %# Adjust for adding of blanks
>> nFinal = numel(str)+numel(index);      %# New length of result with blanks
>> newstr = blanks(nFinal);               %# Initialize the result as blanks
>> newstr(setdiff(1:nFinal,index)) = str  %# Fill in the string characters

newstr =

ABCDEF GHJKL MNO

#2

Do you want to insert spaces at specific indices?

您想在特定索引处插入空格吗?

chars = ['A','B','C','D','E','F','G','H','J','K','L','M','N','O'];
%insert space after index 6 and after index 10 in chars
charsWithWhitespace = [chars(1:6), ' ', chars(7:10), ' ', chars(11:end)];

#1