一个条件表达式。
满足给定的条件表达式。
除此之外，在输入条件表达式时，也可以使用代码帮助。
In addition, code assist is available when typing in the conditional expression.
为此，可以针对每个DataItem使用以下条件表达式(见图21)。
To do this, we can use following conditional expression for each Data Item (Figure 21).
转到condition标签，删除现有的表达式，然后为该条件选择otherwise。
Go to the condition TAB, delete the existing expression and choose Otherwise for this condition.
这会创建与GoodCustomer条件一样的表达式。
This creates the same expression as the Good Customer condition.
条件是一个可求值的表达式，所以可以测试其结果。
A condition is an expression that is evaluated so that its result can be tested.
它定义一个测试条件，一个true表达式，以及一个可选的false表达式。
It defines a test conditional, a true expression, and an optional false expression.
条件可以是调试器能够识别的任何有效表达式。
The condition can be any valid expression that is recognized by the debugger.
获取或设置作为循环继续的条件进行测试的表达式。
Gets or sets the expression to test as the condition that continues the loop.
可创建简单的约束表达式，用简单条件检查数据；
You can create a simple constraint expression to check data for a simple condition;
讨论了子空间上一类矩阵反问题，得到了问题有解的充分必要条件及解的表达式。
In this paper, a class of inverse problem for matrices on subspace is studied.
讨论了子空间上一类矩阵反问题，得到了问题有解的充分必要条件及解的表达式。
In this paper, a class of inverse problem for matrices on subspace is studied.
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