Always account for variable change.
永远记得考虑变量的变化。
You can change the APP variable to whatever source file suits you.
可以将APP变量改变为任何您所使用的源文件。
Usually within loops, there are several ways that a given variable can change state.
通常在循环中给定的变量能够以多种方式改变状态。
You can declare and initialize a test variable, set its scope, and change its value.
您可以声明并初始化一个测试变量，设置它的范围，并更改它的值。
It is also possible to access and change a test variable through custom code.
通过通用代码来访问和更改测试变量，也是可能的。
Change the name of the variable to rate1.
将该变量名称更改为rate1。
You can change its location by setting (yes, an environment variable) HISTFILE.
可以通过设置HISTFILE（不错，这是一个环境变量）来更改它的位置。
Unable to cause change in a state or output variable.
无法导致在状态或输出变量上的变化。
Statement cannot change the data type of an array variable or of its elements.
语句无法更改数组变量或其元素的数据类型。
Why does my second variable value change when updating the first?
为什么我的第二个变量值改变时更新吗？
In that case the local variable would not change but the property may change.
在这种情况下，局部变量不会改变，但性能可能会改变。
In that case the local variable would not change but the property may change.
在这种情况下，局部变量不会改变，但性能可能会改变。
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