There is no difference between the results obtained by the two. They are both references to system style resources, such as @android:style/Theme.Dialog和android:Theme.Dialog都是指向了同一个系统级theme，要说区别，应该就是绝对路径和相对路径的区别(个人比喻)，推荐使用相对路径方式引用，即@android:/stylethis way.
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There is no difference between the results obtained by the two. They are both references to system style resources, such as
@android:style/Theme.Dialog和android:Theme.Dialog都是指向了同一个系统级theme，要说区别，应该就是绝对路径和相对路径的区别(个人比喻)，推荐使用相对路径方式引用，即@android:/stylethis way.No difference, different quotes