Sender: seaboy Chemist who wants to get gold from the sun, message area: ANSI Title: ASCII Introductory Tutorial 4 Shift Control Sending site: Sun and Moon Guanghua Wednesday, April 2, 2003 19:33:50, site mail Shifting This technique is usually used most in signature files because signature files can only write six lines of code. If you want to make a signature file with more than six lines, then you need to use shifting to achieve this purpose. Next, I will introduce some control characters related to shifting. These control characters are case-sensitive. 1*[x;yH This control character means that the content within one row after it is moved to the xth row and the yth column after the move. The content of other rows will also be moved sequentially, that is, all the content starting from that row will be moved as a whole. The bodies move together *[x;y coordinates are calculated from the upper left corner of the screen. The coordinates of the upper left corner are *[1;1H Since this usage is relatively simple, I won’t give an example. 2 *[nA *[nB ​​*[nC *[nD These four control symbols respectively mean to move the cursor up n lines, down n lines, right n lines, and left n lines. For example It is explained as follows Just *[4C is like *[B*[6D this*[4C. The effect is so So how does it move? We can assume that a cursor starts at the word After that, *[4C like represents the word like first moved 4 characters to the right, and then moved the word like We need to start moving from the position behind the word like *[B means moving down one line first because When moving a row or a column, the number 1 before the letter can be omitted. At this time, it should be as shown in the figure below like this Then *[6C means to move 6 characters to the left. This becomes like this Finally, the character "like" will be moved to the position of this character *[4C means moving 4 characters to the right, like this The move is complete and the result is as shown in the picture below. like so The key to using these control symbols is to figure out the direction of movement and the number of steps. If sometimes it is not clear, Just press Esc c to preview the effect at any time and then make corrections. 3 *[s and *[u *[s cursor save control character Save the current cursor position *[u cursor restore control character restore the cursor Return to *[s to save the cursor position. An analogy is like Doraemon's random door. You can move the cursor from within a screen. Anywhere in the world is instantly restored to the nearest *[s, just like passing through a space-time door, no matter how far apart there is. Examples are as follows Measure*[s *[utest*[s *[u一*[s *[u下 The effect is have a test ヽ Source: Sun and Moon Guanghua bbs.fudan.edu.cn [FROM: 10.100.107.130]