fix README

Author: linzhijun

README-EN.md

@@ -37,6 +37,8 @@ ToolGood.Algorithm is a powerful, lightweight, `Excel formula` compatible algori
     var j = engine.TryEvaluate("json('{\"Name\":\"William Shakespeare\", \"Age\":51, \"Birthday\":\"04/26/1564 00:00:00\"}').Age", null);//Return 51 返回51
     var k = engine.TryEvaluate("json('{\"Name\":\"William Shakespeare   \", \"Age\":51, \"Birthday\":\"04/26/1564 00:00:00\"}')[Name].Trim()", null);//Return to "William Shakespeare"  返回"William Shakespeare" (不带空格)
     var l = engine.TryEvaluate("json('{\"Name1\":\"William Shakespeare \", \"Age\":51, \"Birthday\":\"04/26/1564 00:00:00\"}')['Name'& 1].Trim().substring(2, 3)", null); ;//Return "ill"  返回"ill"
+    var n = engine.TryEvaluate("{Name:\"William Shakespeare\", Age:51, Birthday:\"04/26/1564 00:00:00\"}.Age", null);//Return 51 返回51
+    var m = engine.TryEvaluate("{1,2,3,4,5,6}.has(13)", true);//Return false 返回false
 
 ```
 Constants`pi`, `e`, `true`, `false`are supported.
@@ -53,6 +55,10 @@ The default index is`excel index`. If you want to use c# index, please set`UseEx
 
 Chinese symbols are automatically converted to English symbols: `brackets`, `square brackets`, `commas`, `quotation marks`, `double quotation marks`.
 
+
+Chinese symbols are automatically converted into English symbols: `brackets`, `commas`, `quotation marks`, `double quotation marks`，`addition`,`subtraction`, `multiplication`, `division` , `equal sign`.
+
+
 Note: Use `&` for string concatenation. 
 
 
@@ -99,6 +105,9 @@ Note: `find` is an Excel formula , find (the string to be searched, the string t
 ```
 Parameters are defined in square brackets, such as `[parameter name]`. 
 
+
+Parameter definitions, such as`[parameter name]`, `【parameter name】` , `#parameter name#` , `@parameterName`.
+
 Note: You can also use `AddParameter`, `AddParameterFromJson` to add methods, and use `DiyFunction`+= to customize functions. 
 
 Note 2: use `AlgorithmEngineHelper.GetDiyNames` get `parameter name` and `custom function name`.
@@ -117,6 +126,26 @@ Note 2: use `AlgorithmEngineHelper.GetDiyNames` get `parameter name` and `custom
 
 ```
 
+## Support Unit
+
+Standard units can be set: `DistanceUnit` (default:`m`), `AreaUnit`(default:`m2`), `VolumeUnit`(default:`m3`), `MassUnit`(default:`kg`).
+
+Note: When calculating the formula, first convert the quantity with units into standard units, and then perform numerical calculations.
+
+``` csharp
+    AlgorithmEngine engine = new AlgorithmEngine();
+    bool a = engine.TryEvaluate("1=1m", false); // return true
+    bool b = engine.TryEvaluate("1=1m2", false); // return true
+    bool c = engine.TryEvaluate("1=1m3", false); // return true
+    bool d = engine.TryEvaluate("1=1kg", false); // return true
+
+    // Unit Conversion 单位转化
+    var num = AlgorithmEngineHelper.UnitConversion(1M,"米","千米"); 
+
+    //  Example of not throwing mistakes  不抛错例子
+    bool error = engine.TryEvaluate("1m=1m2", false); // return true
+```
+
 
 ## Excel Formula
 

README.md

@@ -52,9 +52,6 @@ bool转数值，假为`0`，真为`1`。bool转字符串，假为`FALSE`，真
 
 注：字符串拼接使用`&`。
 
-
-
-
 注：`find`为Excel公式，find(要查找的字符串, 被查找的字符串[, 开始位置])
 
 ## 自定义参数
@@ -117,10 +114,10 @@ bool转数值，假为`0`，真为`1`。bool转字符串，假为`FALSE`，真
 ```
 ## 支持单位
 
-可设置标准单位：长度(默认：`m`)、面积(默认：`m2`)、体积(默认：`m3`)、重量(默认：`kg`)。
+可设置标准单位：长度`DistanceUnit`(默认：`m`)、面积`AreaUnit`(默认：`m2`)、体积`VolumeUnit`(默认：`m3`)、重量`MassUnit`(默认：`kg`)。
 
 注：公式计算时，先将带单位的数量转成标准单位，再进行数字计算。
-
+ 
 ``` csharp
     AlgorithmEngine engine = new AlgorithmEngine();
     bool a = engine.TryEvaluate("1=1m", false); // return true

csharp/ToolGood.Algorithm2.Test/AlgorithmEngine/AlgorithmEngineTest_v3.5.cs

@@ -60,6 +60,9 @@ public void Json_test()
             b = engine.TryEvaluate("{name:'toolgood', age:'12',other:{work:'IT'}}.hasKey('age')", false);
             Assert.AreEqual(b, true);
 
+            b = engine.TryEvaluate("{e:'toolgood', pi:'12',other:{work:'IT'}}.hasKey('e')", false);
+            Assert.AreEqual(b, true);
+
             b = engine.TryEvaluate("json(\"{'name':'toolgood', 'age':'12','other':{'work':'IT'}}\").has('age')", false);
             Assert.AreEqual(b, true);
 
@@ -74,6 +77,8 @@ public void Json_test()
 
             b = engine.TryEvaluate("json(\"{'name':'toolgood', 'age':'12','other':{'work':'IT'}}\").hasValue('toolgood')", false);
             Assert.AreEqual(b, true);
+
+ 
         }
 
         [Test]