查询词典 null

System.out.println("a.length="+ a.length); System.out.println("b.length ="+ b.length);// The handles inside the array are // automatically initialized to null: for(int i = 0; i nbsp;b.length; i++) System.out.println; System.out.println("c.length ="+ c.length); System.out.println("d.length ="+ d.length); a = d; System.out.println("a.length ="+ a.length);// Java 1.1 initialization syntax: a = new Weeble { new Weeble, new Weeble }; System.out.println("a.length ="+ a.length);// Arrays of primitives: int e;// Null handle int f = new int[5]; int g = new int[4]; for(int i = 0; i nbsp;g.length; i++) g = i*i; int h ={ 11, 47, 93 };// Compile error: variable e not initialized://!

句柄。此时，编译器会禁止我们对这个句柄作任何实际操作，除非已正确地初始化了它。数组b被初始化成指向由Weeble句柄构成的一个数组，但那个数组里实际并未放置任何Weeble对象。然而，我们仍然可以查询那个数组的大小，因为b指向的是一个合法对象。这也为我们带来了一个难题：不可知道那个数组里实际包含了多少个元素，因为length只告诉我们可将多少元素置入那个数组。换言之，我们只知道数组对象的大小或容量，不知其实际容纳了多少个元素。尽管如此，由于数组对象在创建之初会自动初始化成null，所以可检查它是否为null，判断一个特定的数组&空位&是否容纳一个对象。类似地，由基本数据类型构成的数组会自动初始化成零、null或者false。

Struct audit_buffer *audit_log_startstruct audit_context *ctx, gfp_t gfp_mask,{ struct audit_buffer *ab = NULL;struct timespec t;unsigned int serial;int reserve;unsigned long timeout_start = jiffies;if (!audit_initializedreturn NULL

函数audit_filter_type将审计事件值与规则域的值比较，返回逻辑比较结果，即审计事件值符合规则域的定义，则表示不需要查看这个审计事件，返回值为1，否则为0。

With this dedicated base ring, we succeeded in constructing the EAST, which generates the steady, very long wavelength pulsed plasma, and which realizes the operation of double-null, high-beta plasma as well as single-null plasma at full current.

介绍变形及装配等带来的不满足精度要求将带来的后果。在后续的实验中成功验证基准环的设计，获得稳态的、极长的长脉冲等离子体，并实现全电流下的双零高β和单零高等离子体的运行实验。

Moreover, with regard to each and all provisions and collations of ecclesiastical benefices, confirmations of elections and petitions, grants of concessions, mandates and indults, of whatever kind, concerning both favours and matters of justice or both together, of whatever sense they may be -- which things we wish to be regarded as clearly stated in the present letter -- which were made by the synagogue or quasi-council of Pisa and its schismatic adherents, lacking all authority and merit, though they are indeed null and void, yet, for greater caution, we decree, with the approval of the said sacred council, that they are null and of no effect, force or importance; and that each individual, of whatever rank, status, grade, nobility, order or condition, to whom they were granted, or to whose convenience, advantage or honour they pertain, are to give up their fruits, incomes and profits, or to arrange for this to be done, and they are bound to restore both these things and their benefices and to give up the other aforesaid concessions, and that unless they have really and completely given up the benefices themselves and the other things granted to them, within two months from the date of this present letter, they are automatically deprived of the other ecclesiastical benefices which they hold by lawful title.

此外，关於每一个和所有条款和校对的教会benefices ，确认选举和请愿书，赠款的让步，任务和indults ，无论那种，都倾向於和有关事项的司法或两者一起，无论他们可能是意义-这是我们希望被看作是中明确指出本信-这是由犹太教堂或准安理会比萨及其分裂的信徒，都缺乏权威和价值，但它们实际上是无效的，但，有更大的谨慎，我们法令批准，该理事会表示，神圣的，他们是完全没有效果，武力或重要性和每一个人，无论职位高低，身份，等级，贵族，命令或条件，以他们被授予或其方便，优势或履行它们涉及，是放弃自己的水果，收入和利润，或安排这样做，他们的约束，以恢复这些事情都和他们的benefices和放弃其他上述让步，除非他们真正和彻底放弃benefices自己和其他的东西给他们，在两个月内之日起的本信，他们会自动被剥夺了其他教会benefices他们搁置的合法所有权。

However, with multi-selected nulls, a separate Emit from Null compound is created for each null emitter.

然而，如果用户多选了NULL作为发射器的话则对每个null发射器都会创建一个各自的Emit from Null复合节点。

Although the aforesaid sanction should clearly be subject to nullity on many counts, and was supporting and preserving open schism, and therefore it could have been declared to be essentially of no effect, null and invalid, without the need for any preceding formal citation, yet, from a great sense of caution, our same predecessor Julius, by a public edict -- which was to be fixed to the church doors of Milan, Asti and Pavia, since there was then no safe access to France -gave warning and summoned the prelates of France, the chapters of churches and monasteries, the parlements and the layfolk supporting them and making use of the said sanction, and each and all of the rest who were thinking that there was some advantage for them in the foregoing individually or collectively, to appear before him and the said council within a fixed period, which was then clearly stated, and to declare the reasons why the aforesaid sanction, and its corruptive and abusive effect in matters touching on the authority of the Roman church and the sacred canons, and on the violation of ecclesiastical liberty should not be declared null and invalid.

虽然上述制裁显然应受无效在许多方面，并支持和维护开放的分裂，因此，它可以被宣布为基本上没有影响，是完全无效的，而不需要任何前正式引文，但从高度的谨慎，我们同前任朱利，由公共法令-这是将固定在教堂大门米兰，阿斯提和帕维亚，因为当时没有任何安全进入法国了警告，并召见主教的法国，各章的教堂和修道院，在parlements和layfolk支持他们，并利用上述制裁，每个和所有其余谁被认为有一些优势，他们在上述单独或集体，到他面前，并说，安理会在固定期限内，然后明确规定，并宣布了上述原因的制裁，它的腐败和滥用影响的事项涉及的权威和罗马教会的神圣大炮，以及对违反教会自由不应被宣告无效。

We study on the controllability of parabolic systems with a nonlinear term involving the state and the gradient ,the null controllability property of a 1-d parabolic equation involving a fractional power of the Laplace operator ,null controllability of some systems of two parabolic equations with one control force ,and exact controllability of the parabolic system with bilinear control.

我们研究了含有状态和梯度的非线性的项抛物系统的能控性，含有拉普拉斯算子的分数阶的1-d抛物方程的零能控性，带有一个强控制的两个抛物方程的一些系统的零能控性和具有双线性控制抛物系统的精确能控性。

The second part is the controllability of parabolic equation .We study on the controllability of parabolic systems with a nonlinear term involving the state and the gradient ,the null-controllability property of a 1-d parabolic equation involving a fractional power of the Laplace operator ,null controllability of some systems of two parabolic equations with one control force ,and exact controllability of the parabolic system with bilinear control .

第二部分写的是，抛物方程的能控性，我们研究了含有状态和梯度的非线性的项抛物系统的能控性，含有拉普拉斯算子的分数阶的1-d抛物方程的零能控性，带有一个强控制的两个抛物方程的一些系统的零能控性和具有双线性控制抛物系统的精确能控性。

You may not purchase, sell, gift or trade any Account, or offer to purchase, sell, gift or trade any Account, and any such attempt shall be null and void.

你不可以购买、销售、赠送或者交易任何帐号，或者提供购买、销售、赠送或者交易任何帐号的服务，所有此类行为都是无效的。

The processes and the key techniques of the null coupler and acoustic transducers are described and analyzed in detail.

第三部分是光纤声光耦合器和光纤环形器构成的新型OADM 的实验研究。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。