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b := a; // b and a point to the same data。业内人士推荐新收录的资料作为进阶阅读
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25 February 2026 16 min read。新收录的资料对此有专业解读
Let's talk performanceGoing back to the DisplayManager implementation, the interesting part starts with D, the default constructor, which of course must be private in a singleton. More on that in a moment. As a last item, you see E, where I use a block local static for the variable dspm.