如何在C#中使用IronPython

Question

如何在C#中使用IronPython执行Python语句，例如，一个表达式：string expr="a=1
\n def b(): \n\t print a \n b()\n"，执行后打印“1”。

Answer 1

参考

using System;
using System.Windows.Forms;
using IronPython.Hosting;
using System.Drawing;

namespace CSharpAndIpy
{
    public partial class FrmMain : Form {
        public FrmMain()
        {
            InitializeComponent();
        }
        private void btnRunOfString_Click(object sender, EventArgs e)
        {
            try {
                //创建一个IpyRunTime，需要2-3秒时间。建议进入全局时加载，此为演示 var engine = IronPython.Hosting.Python.CreateEngine();
                var code = engine.CreateScriptSourceFromString(txtScript.Text);
                var actual = code.Execute<object>();//执行code脚本，获取输出值actual txtPrint.Text = actual.ToString();
            }
            catch (Exception ex)
            {
                txtPrint.Text = ex.ToString();
            }
        }
        //执行事先准备的my.py脚本 private void btnRunOfIpyFile_Click(object sender, EventArgs e)
        {
            var engine = Python.CreateEngine();
            var scope = engine.CreateScope();
            scope.SetVariable("Ipy_this", this);//将this Set 到Ipy脚本的Ipy_this值中 var code = engine.CreateScriptSourceFromFile("my.py");//执行my.py code.Execute(scope);
        }
        /// <summary> /// 测试方法，要为public才能在Ipy脚本中访问 /// </summary> public void testMethod(int R,int G,int B)
        {
            try {
                txtScript.BackColor = Color.FromArgb(R, G, B);
            }
            catch { }
        }
    }
}