c# 将字符串转换为指定类型的值

 private object GetValueByProperty(string key, string value, ref Type typeValue)
        {
            Type t = typeof(T);
            var property = t.GetProperty(key);
            if (property == null)
            {
                return value;
            }


            Type pt = property.PropertyType.IsGenericType && !property.PropertyType.IsGenericTypeDefinition
                ? property.PropertyType.GetGenericArguments()[0] : property.PropertyType;
            object obj = Convert.ChangeType(value, pt);
            if (property.PropertyType.IsGenericType && !property.PropertyType.IsGenericTypeDefinition)
            {
                typeValue = property.PropertyType;
            }
            else
            {
                typeValue = pt;
            }
            return obj;
        }