前言 最近在读<Thinking in Java>,看到这样一段话: Primitives that are fields in a class are automatically initialized to zero, as noted in the Everything Is an Object chapter. But the object references are initialized to null, and if you try to call methods for an
例: 在Java中定义一个属性,然后用C语言将其设置成另外的值,并输出出来. Java代码: Person.java package com.yuneec.demo; public class Person { static { System.loadLibrary("td"); } public int age = 20; public native void readAge(); public int getAge() { return age; } } MainActivity.
-- -- 删除base里冗余的数据 --UPDATE dbo.N_Order_ServiceLog SET IsDel = 1 WHERE OrderId IN ( SELECT OrderId FROM( SELECT ROW_NUMBER() OVER(PARTITION BY bs.Phone,sl.Companyid ORDER BY sl.id desc) AS cindex, bs.Phone,sl.* FROM dbo.TableXX