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A function pointer is a piece of data which stores the location of some code. A program uses this data to decide what code to run next. Programs themselves can modify function pointers in order to alter their functionality as they run, but, if we can modify the function pointer, we can also alter what the program does, including in ways that may be unintended.
，这一点在新收录的资料中也有详细论述
// 将pivot放到正确位置（j的位置）
Build descriptive error messages with string interpolation (see Chapter 3):。关于这个话题，新收录的资料提供了深入分析
Best sleep tracker deal。新收录的资料对此有专业解读
与地面太阳能发电相比，太空的发电条件堪称完美：无云层遮挡、无昼夜交替、无大气衰减。在地球静止轨道或地球太阳同步轨道上，单位太阳能电池板可接收的太阳辐射量为地面的8至10倍，且能实现24小时连续发电，具备成为稳定“基荷电源”（连续稳定运行的基础电源）的潜力。同时，空间太阳能电站的扩展能力极强，通过扩大规模能满足全球能源增长需求。如果在地球静止轨道铺设一周一公里宽的太阳能电池带，一年接收的能量相当于地球可开采石油的总量。