New and old value variables can be used with TTITLE and BTITLE respectively.
新值和旧值变量可以分别与TTITLE和BTITLE一起使用。
A CAS operation includes three operands — a memory location (v), the expected old value (a), and a new value (B).
CAS操作包含三个操作数——内存位置(V)、预期原值(A)和新值(B)。
The old value can be used by the DMS to make sure backend data hasn't been modified by someone else in the meantime.
DMS可以使用原来的属性值确保后端数据在此期间没有被别的人修改。
The processor will atomically update the location to the new value if the value that is there matches the expected old value, otherwise it will do nothing.
如果内存位置的值与预期原值相匹配，那么处理器会自动将该位置值更新为新值。否则，处理器不做任何操作。
If you store using a key that is already in use, the old value associated with that key is forgotten.
如果你用一个已经存在的关键字存储值，以前为该关键字分配的值就会被遗忘。
A new assignment makes an existing variable refer to a new value (and stop referring to the old value).
一次新的赋值使得已有的变量获得新的值(也就不再有旧的值了。)
Another scenario would be a dirty read where the value is in the process of being updated and another thread reads an old value.
另外一种情况是误读（dirtyread），即一个数值正在被修改而另外一个进程读了一个修改前的值。
Before this discovery occurs, if you use a Configuration Manager Proxy application to view a property changed using mqsichangeproperties, the old value will still be displayed.
在完成此发现之前，如果使用ConfigurationManagerProxy应用程序检查使用mqsichangeproperties来更改的属性，则仍然会显示旧的值。
Object changes contain references to data objects in the data graph whose properties have been modified, along with the property that was changed and the old value for that property.
对象变更包含数据图中属性已经被修改的那些数据对象的引用、被修改的属性和修改之前的属性值。
In the case of the counter, the speculative step is the increment — it fetches and adds one to the old value in the hopes that the value will not change while the update is being computed.
在计数器的示例中，冒险的步骤是递增——它检索旧值并在旧值上加一，希望在计算更新期间值不会变化。
When using a P8-based dispenser object, the conceptual idea for getting a sequence number is the same: read the old value, update and store the new value, and return the new value to the caller.
在使用基于P8的分发器对象时，获取序列号的方法在本质上是一样的：读取旧值、更新并储存新值，然后将新值返回给调用方。
When using a P8-based dispenser object, the conceptual idea for getting a sequence number is the same: read the old value, update and store the new value, and return the new value to the caller.
在使用基于P8的分发器对象时，获取序列号的方法在本质上是一样的：读取旧值、更新并储存新值，然后将新值返回给调用方。
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