假期结束

  昨天下午飞回北京。从深圳起飞时天气很好,从空中看地面绿油油的。越往北云层越厚。落到首都机场一看,到处白茫茫的。两边温差达到30摄氏度,没几分钟机舱窗户上就开始结冰花。一上飞机全身就开始紧张,每次回北京就像回战场一样。在飞机上接着踅摸《Modern C++ Design》,第3章Typelists的内容总算是搞清楚了,回头又读第11章Multimethods,果然更明白了

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