1、目的
分别用代码、模板生成目标代码文件。
犯法主要包括文件读写、代码生成函数、及应用程序。
2、文件读写函数

/// <summary>/// 文本文件写/// </summary>/// <param name="path"></param>/// <param name="str"></param>public static void WriteTxt(string path, string str){using (StreamWriter writer = new StreamWriter(path, true)){writer.WriteLine(str);writer.Close();}}/// <summary>/// 文本文件读/// </summary>/// <param name="path"></param>/// <returns></returns>public static string ReadTxt(string path){try{if (!File.Exists(path)){return null;}string str = string.Empty;using (FileStream fs = new FileStream(path, FileMode.Open, FileAccess.Read)){using (StreamReader sr = new StreamReader(fs)){str=sr.ReadToEnd();sr.Close();}fs.Close();}return str;}catch (Exception e){Console.WriteLine(e.Message);return null;}}

3、代码生成函数

/// <summary>/// 代码生成器（整体生成）/// </summary>/// <param name="space"></param>/// <param name="name"></param>public static void CsharpGenerate(string space,string name){StringBuilder sb = new StringBuilder();sb.Append("using System;\n" +$"namespace {space}\n" +"{\n" +$"  public class {name}" +"  {\n" +"    private string name;\n" +"    public void function(string str)\n" +"    {\n" +"      Console.WriteLine(str);\n" +"    }\n" +"  }\n"+"}\n");WriteTxt("E:\\generate.cs", sb.ToString());}/// <summary>/// 代码生成器（分行生成）/// </summary>/// <param name="space"></param>/// <param name="name"></param>public static void CsharpGenerateSplit(string space, string name){StringBuilder sb = new StringBuilder();sb.Append("using System;\n");sb.Append($"namespace {space}\n");sb.Append("{\n");sb.Append($"  public class {name}");sb.Append("  {\n");sb.Append("    private string name;\n");sb.Append("    public void function(string str)\n");sb.Append("    {\n");sb.Append("      Console.WriteLine(str);\n");sb.Append("    }\n");sb.Append("  }\n");sb.Append("}\n");WriteTxt("E:\\generateSplit.cs", sb.ToString());}/// <summary>/// 代码生成器（模板生成）/// </summary>/// <param name="space"></param>/// <param name="name"></param>public static void CsharpGenerateTemplate(string space, string name){string str = ReadTxt("E:\\generate.cs");str = str.Replace("Demo", space);str = str.Replace("Test", name);WriteTxt("E:\\generateTemplate.cs", str);}

4、应用

static void Main(string[] args){//CsharpGenerate("Demo", "Test");//CsharpGenerateSplit("Demo", "Test");CsharpGenerateTemplate("Nature", "Develop");}

5、效果
generate.cs文件

using System;
namespace Demo
{public class Test  {private string name;public void function(string str){Console.WriteLine(str);}}
}

generateSplit.cs文件

using System;
namespace Demo
{public class Test  {private string name;public void function(string str){Console.WriteLine(str);}}
}

generateTemplate.cs文件

using System;
namespace Nature
{public class Develop  {private string name;public void function(string str){Console.WriteLine(str);}}
}