How does my world summon a command box with instructions?

My World uses the command to summon the command box as follows:

1, the version is lower than 1. 7. 10:/ Give your name (or @p) 137 quantity;

For example:/give @ p1371; That is, give yourself 1 command box.

2. The version is above 1.7. 10: /give? Your name (or @p) command_block number;

For example:/give @ pcommand _ block2; That is, give yourself two command boxes.

Note: "@p" here means used by the nearest player, that is, by the player who entered the instruction.

Extended data:

Several commands commonly used in my world:

1、? /gamemode 0/ 1/3: Change the game mode, where 0 corresponds to survival mode, 1 corresponds to creation mode, and 3 corresponds to observer mode;

2、? /time set time: change the current time of the game, such as /time set 0, that is, set the time to daytime;

3./tp x y z: Send yourself to a place, such as /tp 235 70 326, that is, send yourself to a position with X coordinate 235, Y coordinate 70 and Z coordinate 326;

4./weatherclear/rain/thunder/storm/Sun: change the weather instruction, where clear means that the rain has stopped, rain means rainy day, thunder means thunderstorm, storm means snowy day and Sun means sunny day;

5./setblock x y z box id: set a box at a certain position, where x, y and z represent the coordinate position of the box, and different box ids correspond to different boxes.