C#使用ini配置文件保存讀取配置數據

使用ini配置項目的好處：

1. 文本保存便於查看和修改
2. 配置過程簡單高效
3. 使用、擴展靈活

實例：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Runtime.InteropServices;

namespace leisai1
{
    public partial class Settings : Component
    {

        //配置文件路徑，可以擴展做成多配置文件
        private static string IniFilePath = "D:/workspace/vs2013/C#學習/kongzhika/leisai1/Config.ini";

        public Settings()
        {
            InitializeComponent();
        }

        public Settings(IContainer container)
        {
            container.Add(this);

            InitializeComponent();
        }

        [DllImport("kernel32.dll")]
        private static extern long WritePrivateProfileString(string section, string key, string value, string filepath);
 
        [DllImport("kernel32.dll")]
        private static extern int GetPrivateProfileString(string section, string key, string def, StringBuilder returnvalue, int buffersize, string filepath);

        //公開接口：讀取配置
        public static void GetValue(string section, string key, out string value)
        {

            StringBuilder stringBuilder = new StringBuilder();
            GetPrivateProfileString(section, key, "", stringBuilder, 1024, IniFilePath);
            value = stringBuilder.ToString()??"";
        }

        //公開接口：設置配置
        public static void SetValue(string section, string key, string value)
        {
            WritePrivateProfileString(section, key, value, IniFilePath);
        }
    }
}