1、方便代码的交流和维护。
2、不影响编码的效率，不与大众习惯冲突。
3、使代码更美观、阅读更方便。
4、使代码的逻辑更清晰、更易于理解。(1, facilitate code communication and maintenance.
2, does not affect the efficiency of coding, and do not conflict with the public habits.
3, make the code more beautiful, more convenient to read.
4, make the logic of the code clearer and easier to understand.)