concatenation operation meaning in English
并置运算, 连接运算
Examples
- The result of a concatenation operation is null when either operand is null
当串联运算的两个操作数中任意一个为null时,结果也为null 。 - Both carry out the basic concatenation operation , as the following example shows . visual basic
这两种串联运算符都执行基本的串联运算,如下面的示例所示。 - Is on enabled , which returns a null if any operand in a concatenation operation is null
设置处于打开状态(启用) ,则当串联操作中的任何操作数为空时将返回null 。 - When on is specified , the result of a concatenation operation is null when either operand is null
当指定为on时,如果串联操作的两个操作数中任意一个为null ,则结果也为null 。 - Is off disabled , which returns an empty string if any operand in a concatenation operation is null
设置处于关闭状态(禁用) ,则当串联操作中的任何操作数为null时将返回空字符串。