查询词典 null

If p == new_ele or p ==++new_ele, this function is a null operation.

如果 p == new_ele 或 p ==++new_ele，本函数为空操作。

If NULL a previously registered function handler for this function code is removed.

如果为空，一个以前定义功能码回调函数将被去掉。

Function Required. The name of the user-made function, or null

必要函数。指定自定义函数的名称，或者不设定

If the number specified in left is less than or equal to zero, then returns a null string, so LEN function returns 0

如在LEFT 内的数值是等於或小於0则输出为空白，所以LEN长度为0

If this function returns NULL, we interpret it as no more handle to obtain so the current hEdit is the last control in the line.

如果这个函数返回值为 NULL ，说明在当前窗口句柄链中没有其它的句柄了，所以当前的 hEdit 是这个链上的最后一个句柄。

It's impossible to call a virtual function through a null pointer at runtime because of an uninitialized vtbl.

它不需要用对象指针·它节约了vtbls所需的内存·在运行时不可能发生因为没有初始化vtbl而通过一个空指针调用虚函数。

It shouldn't come instead of making an effort to write correct code, to add many tests in the code for invalid function arguments, NULL pointers, etc.

这不能取代为写出正确的代码作出努力——增加大量的对无效的函数参数、空指针等等的测试。

If this function returns NULL, no exception has been raised and the caller should assume no current thread state is available.

如果这个函数返回 NULL，没有抛出异常，调用者会假定当前线程状态无效。

Programmatically check to determine if a function has returned null instead of an instance of an object.

异常助手如果结合"编辑后继续运行"来使用，将焕发难以置信的效率，我们下次就介绍"编辑后继续运行"。

If the specified memory block has been discarded or if the memory block has a zero-byte size, this function returns NULL.

如果指定的内存块已经被释放或者大小为0字节，该函数将返回NULL。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。