ClearScript .NET 脚本工具_系统开发-程序员客栈

ClearScript可以帮助开发者添加脚本到.NET应用，当前支持JavaScript(V8和JScript)和VBScript。

示例using System;using Microsoft.ClearScript;using Microsoft.ClearScript.V8;// create a script engineusing (var engine = new V8ScriptEngine()){ // expose a host type engine.AddHostType("Console", typeof(Console)); engine.Execute("Console.WriteLine('{0} is an interesting number.', Math.PI)"); // expose a host object engine.AddHostObject("random", new Random()); engine.Execute("Console.WriteLine(random.NextDouble())"); // expose entire assemblies engine.AddHostObject("lib", new HostTypeCollection("mscorlib", "System.Core")); engine.Execute("Console.WriteLine(lib.System.DateTime.Now)"); // create a host object from script engine.Execute(@" birthday = new lib.System.DateTime(2007, 5, 22); Console.WriteLine(birthday.ToLongDateString()); "); // use a generic class from script engine.Execute(@" Dictionary = lib.System.Collections.Generic.Dictionary; dict = new Dictionary(lib.System.String, lib.System.Int32); dict.Add('foo', 123); "); // call a host method with an output parameter engine.AddHostObject("host", new HostFunctions()); engine.Execute(@" intVar = host.newVar(lib.System.Int32); found = dict.TryGetValue('foo', intVar.out); Console.WriteLine('{0} {1}', found, intVar); "); // create and populate a host array engine.Execute(@" numbers = host.newArr(lib.System.Int32, 20); for (var i = 0; i < numbers.Length; i++) { numbers[i] = i; } Console.WriteLine(lib.System.String.Join(', ', numbers)); "); // create a script delegate engine.Execute(@" Filter = lib.System.Func(lib.System.Int32, lib.System.Boolean); oddFilter = new Filter(function(value) { return (value & 1) ? true : false; }); "); // use LINQ from script engine.Execute(@" oddNumbers = numbers.Where(oddFilter); Console.WriteLine(lib.System.String.Join(', ', oddNumbers)); "); // use a dynamic host object engine.Execute(@" expando = new lib.System.Dynamic.ExpandoObject(); expando.foo = 123; expando.bar = 'qux'; delete expando.foo; "); // call a script function engine.Execute("function print(x) { Console.WriteLine(x); }"); engine.Script.print(DateTime.Now.DayOfWeek); // examine a script object engine.Execute("person = { name: 'Fred', age: 5 }"); Console.WriteLine(engine.Script.person.name);}

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