... assignment rule 赋值规则 assignment statement expression 赋值语句表达式 assignment statement syntax 赋值语句语法 ...
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赋值语句和赋值表达式 Assignment Statements and Assignment Expressions
例如你要写一句赋值语句，你可以声明任何类型的变量，在等号的左边使用任何标识符，然后在右边给出任何的表达式。
In writing an assignment statement, for example, you can declare variables of any type, use any identifier to the left of the equal sign, and supply any expression on the right.
只有在赋值和调用时，表达式才应被当作一条单独的语句。
The only expressions that should be used as statements are assignments and invocations.
这是本例子第一次把关联作为一个定义表达式(换句话说，一个赋值语句)的声明性陈述来使用，而不是用它作模型到模型的映射。
This is the first time that this example is using a relation as a declarative statement to define an expression (in other words, a value assignment) instead of using it for model-to-model mapping.
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