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.
spe_context_run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。
However, the tests such tools come up with tend to be fairly trivial and basic stuff, like whether a method can handle being passed a null argument.
然而，这些工具生成的测试往往相当琐碎和基本，例如方法是否能够处理传递来的null参数。
Called ON null INPUT — Specifies that the procedure is to be called even if any or all argument values are null, which means that the procedure must be coded to test for null argument values.
CALLEDONnullINPUT——指定将调用的过程，即使任何参数值或所有参数都为null，这意味着必须对过程进行编码，来测试那些null参数值。
If the object argument is null, you need to generate a null accessor for the type.
如果对象参数为空，您需要为这个类型生成一个空访问器。
If the string to be searched is not found and neither argument is null, the result is 0.
如果没有找到搜索字符串，并且参数都不为空，则所得的结果是0。
If no value or NULL is specified for this argument, it will first look for explain tables under current authorization ID then under the SYSTOOLS schema.
如果这个参数没有指定值或者指定为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 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。
Essential - No. If this argument is null, then updatable cursors are used to modify the selected columns.
必需——否。如果这个参数是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Zend_Soap_Server对象。
For those methods to accept no argument would require a null where point was specified.
对于不接受参数的方法，在指定point的地方需要一个null。
The second argument, which is left null here, is a similar array of TrustManager objects, which we'll play with later.
第二个参数（这里保留为null）类似于TrustManager对象数组，稍后我们将使用它们。
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。
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。
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 argument that is set to null could have been used to transmit additional properties to the dynamic page instance.
设置为 null的参数可用于将附加属性传送到动态页面实例。
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。
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。
If you assume that an argument is not NULL, for example, use an assertion statement to check for that assumption.
例如，您假设了某个引数不是NULL，便可使用判断提示陈述式来检查这个假设。
This message indicates that the code is passing an unexpected NULL parameter as an argument to the specified API.
此消息意味着代码将意外的NULL参数作为变量传递给指定的API。
This message indicates that the code is passing an unexpected NULL parameter as an argument to the specified API.
此消息意味着代码将意外的NULL参数作为变量传递给指定的API。
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