属性值会如同变数或常数参与运算式的方式参与运算式，或是储存于指派陈述式左边的变数或属性中。

The value of the property participates in the expression just as a variable or constant would, or it is stored in the variable or property on the left side of the assignment statement.

youdao

若要修正此错误，请使用一个新的实值型别变数来储存中继运算式，然后指派值给这个新变数。

To fix this, use a new value-type variable to store the intermediate expression, and assign the value to the new variable.

youdao

下列程式码将示范如何将资料储存至档案中，因此请宣告变数并将要储存档案的有效路径指派给它。

The following code shows how to save the data to a file, so declare a variable and assign it a valid path to save the file to.

youdao