web程序员应该避免的五种代码注释是什么

本篇内容主要讲解"web程序员应该避免的五种代码注释是什么"，感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷，实用性强。下面就让小编来带大家学习"web程序员应该避免的五种代码注释是什么"吧!

1.自以为很了不得的程序员

public class Program {     static void Main(string[] args)     {         string message = "Hello World!";  // 07/24/2010 Bob         Console.WriteLine(message); // 07/24/2010 Bob         message = "I am so proud of this code!"; // 07/24/2010 Bob         Console.WriteLine(message); // 07/24/2010 Bob     } }

这个程序员自认为写了一段很了不得的代码，所以觉得有必要用自己的名字对每行代码进行标记。实施版本控制系统（VCS）能实现对代码变更的问责，但是也不会这么明显知道谁应对此负责。

2.过时的程序员

public class Program {     static void Main(string[] args)     {         /* This block of code is no longer needed          * because we found out that Y2K was a hoax          * and our systems did not roll over to 1/1/1900 */         //DateTime today = DateTime.Today;         //if (today == new DateTime(1900, 1, 1))         //{         //    today = today.AddYears(100);         //    string message = "The date has been fixed for Y2K.";         //    Console.WriteLine(message);         //}     } }

如果一段代码已不再使用（即过时），那就删除它——不要浪费时间给这些代码写注释。此外，如果你需要复制这段被删除的代码，别忘了还有版本控制系统，你完全可以从早期的版本中恢复代码。

3.多此一举的程序员

public class Program {     static void Main(string[] args)     {         /* This is a for loop that prints the          * words "I Rule!" to the console screen          * 1 million times, each on its own line. It          * accomplishes this by starting at 0 and          * incrementing by 1. If the value of the          * counter equals 1 million the for loop          * stops executing.*/         for (int i = 0; i < 1000000; i++)         {             Console.WriteLine("I Rule!");         }     } }

我们都知道基础的编程逻辑是如何工作的——所以你不需要多此一举来解释这些显而易见的工作原理，虽然说你解释得很happy，但这只是在浪费时间和空间。

4.爱讲故事的程序员

public class Program {     static void Main(string[] args)     {        /* I discussed with Jim from Sales over coffee         * at the Starbucks on main street one day and he         * told me that Sales Reps receive commission         * based upon the following structure.         * Friday: 25%         * Wednesday: 15%         * All Other Days: 5%         * Did I mention that I ordered the Caramel Latte with         * a double shot of Espresso?        */         double price = 5.00;         double commissionRate;         double commission;         if (DateTime.Today.DayOfWeek == DayOfWeek.Friday)         {             commissionRate = .25;         }         else if (DateTime.Today.DayOfWeek == DayOfWeek.Wednesday)         {             commissionRate = .15;         }         else         {             commissionRate = .05;         }         commission = price * commissionRate;     } }

如果你一定要在注释里提及需求，那么不要涉及别人的名字。销售部门的Jim可能会离开公司，而且很有可能大多数程序员根本不知道这是何许人也。不要在注释里提及不相干的事实。

5."以后再做"的程序员

public class Program {     static void Main(string[] args)     {        //TODO: I need to fix this someday - 07/24/1995 Bob        /* I know this error message is hard coded and         * I am relying on a Contains function, but         * someday I will make this code print a         * meaningful error message and exit gracefully.         * I just don't have the time right now.        */        string message = "An error has occurred";        if(message.Contains("error"))        {            throw new Exception(message);        }     } }

这种类型的注释包含了上面所有其他类型。如果是在项目的初始开发阶段，这种待做注释是非常有用的，但如果是在几年后的产品代码——那就会出问题了。如果有什么需要修复的，立马解决，不要把它搁置一边，"以后再做"。

到此，相信大家对"web程序员应该避免的五种代码注释是什么"有了更深的了解，不妨来实际操作一番吧！这里是网站，更多相关内容可以进入相关频道进行查询，关注我们，继续学习！