C#使用API创建表达式树
示例
using System.Linq.Expressions;
//手动构建表达式树
// the lambda expression num => num < 5.
ParameterExpression numParam = Expression.Parameter(typeof(int), "num");
ConstantExpression five = Expression.Constant(5, typeof(int));
BinaryExpression numLessThanFive = Expression.LessThan(numParam, five);
Expression<Func<int, bool>> lambda1 =
Expression.Lambda<Func<int, bool>>(
numLessThanFive,
new ParameterExpression[] { numParam });
热门推荐
10 升职加薪的祝福语简短
11 过年送礼祝福语简短精辟
12 送给老师退休祝福语简短
13 文艺乔迁祝福语简短精辟
14 春节新年祝福语简短幽默
15 祝女儿结婚简短祝福语
16 简短经典的祖国祝福语
17 校庆祝福语简短横幅
18 中考考后祝福语简短