You can omit rows or columns in a two-dimensional array

Can you omit rows or columns in a two-dimensional array? Many novices are not very clear about this. In order to help you solve this problem, the following editor will explain it in detail. People with this need can come and learn. I hope you can gain something.

A two-dimensional array can omit rows. Because two-dimensional array storage is "first column", if you do not specify the number of columns, you can not know how many data a row put, as long as you know the number of columns, the row head can know how many rows can be put.

A two-dimensional array can omit rows.

Reason:

Because the two-dimensional array is stored as "first and then column", if he does not specify a strong number, he will not be able to know how many data are put in a row.

As long as you know the number of columns, you can know how many rows you can put at the head of the row.

When defining a two-dimensional array, after omitting it, let the computer determine how many rows and columns you define.

If you omit the number of rows, but determine the number of columns, the computer will automatically determine the number of rows based on the number of your columns and the data you give during initialization, so the number of rows can be omitted.

But if you give the number of rows but do not determine the number of columns, for your initialized data, the computer does not know how to divide, is the average score? Or is it divided in other ways? There are no rules, and mistakes will occur in this way.

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