Question

matlab中，如何给元胞数组中的空白项赋值，也就是把元胞数组中显示为【】的地方赋值，感觉要用到循环？

Answer 1

No need to use any loop. Try the following code.

>> a={1:10, [2;4;6],[]}
a =
[1x10 double] [3x1 double] []

>> a{cellfun(@isempty, a)} = 'non-empty now'
a =
[1x10 double] [3x1 double] 'non-empty now'

You can see that calling "cellfun" with "isempty" and cell array "a" as the parameters will return an index cell array, and you can use this index cell array to reference "a".
This method works when you want to assign same value to all the "[]"s.

If you want to give every "[]" an different value, "for" loop is the most straightforward method.

Answer 2

可以的 例如 使用()和{} 比如 第一列的第二个空白 d(2,1)={...} 具体的一些基础参考help或者我写的总结