null argument
英 [nʌl ˈɑːɡjumənt]
美 [nʌl ˈɑːrɡjumənt]
网络 空自变量
双语例句
- If no value or NULL is specified for this argument, it will first look for explain tables under current authorization ID, then under SYSTOOLS schema.
如果这个参数不指定值或者指定为NULL，那么它首先会查找当前授权ID下的解释表，然后再在SYSTOOLS模式下查找。 - If this argument is null, then updatable cursors are used to modify the selected columns.
如果该参数为null，则使用可更新的游标来修改所选的列。 - Listing 3 initializes a new Zend_Soap_Server object in non-WSDL mode, passing a null value as the first argument to the object constructor.
清单3传递一个null值到对象构造函数的第一个参数，以非WSDL模式初始化了一个新的ZendSoapServer对象。 - The parent argument can be NULL for the/ proc root or a number of other values, depending upon where you want the file to be placed.
parent参数可以为NULL（表示/proc根目录），也可以是很多其他值，这取决于我们希望将这个文件放到什么地方。 - When you don't need to pass data along through send(), then just pass null as the argument to this method.
如果不需要通过send（）传递数据，则只要传递null作为该方法的参数即可。 - The outer() method calls inner() with an argument of null, which will result in inner() doing nothing.
outer（）方法用参数null调用inner（），结果是inner（）什么也不做。 - The NULL argument to spe_context_run would become a third argument to the main function on the SPE; there's no need for it in this example.
specontextrun的NULL参数会成为SPE上main函数的第3个参数；因此在这个例子中不需要使用它。 - What you get in your arguments are a reference to the "this" object ( this is for object methods and is NULL for plain old functions like bar()) and an argument tuple in args.
您从参数中得到的是一个对“this”对象的引用（this用于对象方法，对类似bar（）这样的无参数的老式函数来说是NULL）和一个存储在args中的参数元组。 - IllegalArgumentError is thrown every time an argument is not considered valid, for example, when a null value is passed to a method as a parameter.
IllegalArgumentError在每次认为参数无效时抛出，例如，将null值作为参数传递给方法。 - It's also why the unset method takes an argument, rather than just setting the service to null.
这也就是为什么unset方法还带个参数，而不是把服务设置为null的原因。 - Studies of L1 acquisition of English indicate that English INFL and expletives play a crucial role in child language development. These structures trigger the unlearning of null arguments and the resetting of the null argument parameter.
母语习得研究发现，英语INFL和赘语在操英语儿童的语言习得中起着关键性作用，它们触发了儿童舍弃零主目，正确设置母语的零主目参数。