C#通过变量名获取和设置属性

using System.Reflection;

public static object GetPropertyValue(object obj, string propertyName)
{
    return obj.GetType().GetProperty(propertyName).GetValue(obj, null);
}

public static void SetPropertyValue(object obj, string propertyName, object value)
{
    obj.GetType().GetProperty(propertyName).SetValue(obj, value, null);
}

using System.Dynamic;

public static object GetPropertyValue(object obj, string propertyName)
{
    dynamic dynObj = obj;
    return dynObj.GetType().GetProperty(propertyName).GetValue(obj, null);
}

public static void SetPropertyValue(object obj, string propertyName, object value)
{
    dynamic dynObj = obj;
    dynObj.GetType().GetProperty(propertyName).SetValue(obj, value, null);
}

using System.Linq.Expressions;

public static object GetPropertyValue(object obj, string propertyName)
{
    var param = Expression.Parameter(obj.GetType(), "x");
    var property = Expression.Property(param, propertyName);
    var lambda = Expression.Lambda(property, param);
    var getter = (Func<object, object>)lambda.Compile();
    return getter(obj);
}

public static void SetPropertyValue(object obj, string propertyName, object value)
{
    var param = Expression.Parameter(obj.GetType(), "x");
    var property = Expression.Property(param, propertyName);
    var valueExpr = Expression.Constant(value);
    var assignExpr = Expression.Assign(property, valueExpr);
    var lambda = Expression.Lambda<Action<object>>(assignExpr, param);
    var setter = lambda.Compile();
    setter(obj);
}