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

当指派结构给新变数时，就会复制所有资料，而新变数所做的任何修改都不会变更原始复本的资料。

When a struct is assigned to a new variable, all the data is copied, and any modification to the new copy does not change the data for the original copy.

youdao

财政危机已引发了新的变数。

The financial crisis has brought new factors into play.

《牛津词典》