The values of variables are only displayed if they are in scope. Variables that are not defined at the current source code location display ( &quot; Out of Scope &quot; ) instead of a value.
变量只有在作用域内时才会显示值。如果当前源代码中没有对变量进行定义，则会显示 &quot; Out of Scope &quot; 来代替变量值。