init lserp cs 5.0

2026-07-10 15:25:05 +08:00
commit 90f3fda86a
3799 changed files with 976868 additions and 0 deletions
@@ -0,0 +1,107 @@
+using System;
+using System.CodeDom.Compiler;
+using System.Reflection;
+using System.Windows.Forms;
+using CommonLib;
+using System.Data;
+using Microsoft.CSharp;
+using System.Text;
+
+namespace Lskj.Common {
+    /**/
+    /// <summary>
+    /// 动态求值
+    /// </summary>
+    public class Evaluator {
+        /**/
+        /// <summary>
+        /// 计算结果,如果表达式出错则抛出异常
+        /// </summary>
+        /// <param name="statement">表达式,如"1+2+3+4"</param>
+        /// <returns>结果</returns>
+        public static object Eval(string statement)
+        {
+            object obj = string.Empty;
+            try
+            {
+                if ((!string.IsNullOrEmpty(statement)) && (statement.Substring(0, 1) == "@"))
+                {
+                    DataTable dt = SqlHelper.ExecuteDataSet(statement.Substring(1)).Tables[0];
+                    if (dt == null)
+                        return 0;
+                    if (dt.Rows.Count < 1)
+                        return 0;
+                    return dt.Rows[0][0];
+                }
+                if (string.IsNullOrEmpty(statement))
+                    statement = "1==1";
+
+
+                JSCaller caller = new JSCaller();
+                obj = caller.Eval(statement);
+                //obj = _evaluatorType.InvokeMember(
+                //           "Eval",
+                //           BindingFlags.InvokeMethod,
+                //           null,
+                //           _evaluator,
+                //           new object[] { statement }
+                // );
+            }
+            catch (Exception ex)
+            {
+                //MessageBox.Show("请仔细检查配置列条件[" + statement + "]" + ex.StackTrace + "\r\n" + ex.Message);
+                PubUtil.WriteLog("请仔细检查配置列条件[" + statement + "]" + ex.Message);
+            }
+            //if (string.IsNullOrEmpty(obj + ""))
+            //    return true;
+            return obj;
+        }
+        /**/
+        /// <summary>
+        /// 
+        /// </summary>
+        static Evaluator() {
+            try
+            {
+                CodeDomProvider provider = CodeDomProvider.CreateProvider("JScript");
+                CompilerParameters options = new CompilerParameters
+                {
+                    ReferencedAssemblies = { 
+                        "System.dll",
+                        AppDomain.CurrentDomain.BaseDirectory + @"Microsoft.JScript.dll"
+                    },
+                    GenerateInMemory = false
+                };
+
+                CompilerResults results;
+                results = provider.CompileAssemblyFromSource(options, _jscriptSource);
+                Assembly assembly = results.CompiledAssembly;
+                _evaluatorType = assembly.GetType("Evaluator");
+                _evaluator = Activator.CreateInstance(_evaluatorType);
+            }
+            catch (Exception)
+            {
+            }
+        }
+
+        private static object _evaluator = null;
+        private static Type _evaluatorType = null;
+        /**/
+        /// <summary>
+        /// JScript代码
+        /// </summary>
+        private static readonly string _jscriptSource =
+
+            @"class Evaluator
+              {
+                  public function Eval(expr : String) : String 
+                  {
+                     return eval(expr); 
+                  }
+              }";
+
+        public static object Eval_Ex(string statement) {
+            return null;
+        }
+    }
+}