Xcode 有监视窗口吗？
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Does Xcode have a watch window?
提问by Chris Masterton
Does Xcode have a watch window for variables? It has a window for local variables but that's not much help when I want to watch the value of a global.
Xcode 是否有变量监视窗口？它有一个局部变量的窗口，但是当我想查看全局变量的值时，这没有多大帮助。
I've been spoiled by VisualStudio, I know.
我知道我被 VisualStudio 宠坏了。
回答by Chris Masterton
Solved! Right-clicking in the local variables window brings a menu option of "Add Expression". Type your variable name and now you are watching your variable/expression.
解决了！在局部变量窗口中右键单击会出现“添加表达式”菜单选项。输入您的变量名称，现在您正在观察您的变量/表达式。
The language of "expression" instead of the more familiar "variable" threw me quite a bit. Hard to search for a solution when I have the terminology wrong. Seems obvious now.
“表达”的语言而不是更熟悉的“变量”让我很不舒服。当我的术语有误时，很难找到解决方案。现在似乎很明显。
回答by yoAlex5
Open Debug Area via View -> Debug Area -> Activate Console(Xcode 9)
通过View -> Debug Area -> Activate Console（Xcode 9）打开调试区
Right click -> Add Expression
Right click -> Add Expression
