If there are no more inventory items, this value is null . The initial value of each element is null . The operand can't be null or undefined. NullPointerException-如果locale或其国家/地区代码为null . NullPointerException- if locale or its country code is null . The returned string may be empty but may not be null .
The result returned was ZERO . A primary key cannot allow Null values and must always have a unique index. JavaScript的设计人员已经选择了此值为null 。 The designers of JavaScript could have chosen this value to be null . JavaScript自身不会将变量或对象属性设为null 。 JavaScript itself does not set variables or object properties to null . Double*pvalue=NULL;//初始化为null 的指针. Double* p= NULL;// Pointer initialized with null . We set both n1 and n2 to null . Set its value to NULL . Char*pvalue=NULL;//初始化为null 的指针. Char* pvalue= NULL;// Pointer initialized with null . Them both to null . The name of the return variable could be null as well. Obj- The possibly null object to compare against. This class does not permit null elements. If the user clicks Cancel, a null value is returned. 如果属性“a”的数据类型为null ,并且您使用NOT_NULL计算其值,则结果为布尔值true。 If the data type of attribute"a" is null , and you evaluate it using NOT_NULL, the result is a Boolean true. 如果属性“a”的数据类型为null ,并且您使用NULL计算其值,则结果为布尔值false。 If the data type of attribute"a" is null , and you evaluate it using NULL, the result is a Boolean false. 可能为null ,在这种情况下此方法等效于loadClass(className)。 May be null , in which case this method is equivalent to loadClass(className). NullPointerException--如果指定的元素为null ,并且此collection不支持null元素(可选)。 NullPointerException- if the specified element is null and this list does not support null elements. 如果操作成功完成,则第一个参数将为null 或undefined。 If the operation was completed successfully, then the first argument will be null or undefined. 如果该控件的值为Null ,该过程将使用Nz函数将Null值转换为零长度字符串。 If the value of the control is Null , the procedure uses the Nz function to convert a Null value to a zero-length string. 它们的基本思想是一样的,但是一个明显的差异是:C的引用可以为null 。 The basic idea is the same, but one significant difference is that C references can be null . 同样,初始化值必须是一个表达式,不能是一个对象或者collection初始化器,也不能为null 。 Also, the initializer has to be an expression, not an object or collection initializer, and it cannot be null . 如果value为null ,以index为参数运行remove方法的步骤,并终止本步骤。 If value is null , invoke the steps for the remove method with index as the argument, and abort these steps. 为了满足安全要求,WHLSL使用了安全指针,保证指向有效的东西,或者为null 。 To satisfy the safety requirement, WHLSL uses safe pointers, which are guaranteed to either point to something valid or be null .
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结果: 28 ,
时间: 0.0227
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