The difference between a row and a column lies in the position and direction of a straight line. Seats or straight lines placed horizontally are called rows; Seats placed vertically, that is, vertically, are called rows. Determine whether a row is a row or a column is relative. You are facing a horizontal line, the line extending left and right is a row, and the line extending up and down or back and forth is a column.
Differences between grades
1, defined, rows are horizontal rows and columns are vertical columns.
2. From the observer's point of view, the columns are from left to right, and the rows are from front to back.
3. Number pairs, where the number pairs indicate the position: first count the column where the object is located, and then count the row where the object is located; In other words, the first number represents a column and the second number represents a row; Writing of number pairs: enclose the numbers or letters indicating the number of columns and rows in brackets, and enclose the numbers or words indicating the number of columns and rows in commas; According to the method of digit pair indicating position, in digit pair (a, b), a represents column and b represents row.