ECEF2LLA - 将地心地球固定 (ECEF) 笛卡尔坐标转换为纬度、经度和高度。 用法： [lat,lon,alt] = ecef2lla(x,y,z) lat = 大地纬度（弧度） lon = 经度（弧度） alt = WGS84 椭球以上的高度 (m) x = ECEF X 坐标 (m) y = ECEF Y 坐标 (m) z = ECEF Z 坐标 (m) 注意：此函数假设 WGS84 模型。 纬度是习惯的大地测量（不是地心）。 迈克尔·克莱德，2006 年 4 月

未加入开机自启和ctrl屏蔽

Kettle数据迁移10w、100w、1000w测试del数据文件

YYS-Alt-Manager

解放双手，年度最强代码自生成工具

C#源代码，注册ctrl+空格为热键，截取后，向windows发送 Win+空格，使输入法可以切换，解决win10输入法切换的麻烦；可以自行修改

DP Alt Mode on USB Type C v1.0a d1_clean For USB TYPEC

计算赤道坐标 (RA Dec J2000) 中给出的天空位置的本地地平线系统中的方位角和仰角。 函数调用：[Az El] = RADec2AzEl(350,58, '2008/02/18 13:10:00',60,15,0) 输入： RA - 以度为单位的天空位置的赤经 (J2000) (0:360) Dec - 以度数 (-90:90) 为单位的天空位置的偏角 (J2000) UTC - 格式为 YYYY/MM/DD hh:mm:ss 的 UTC 日期和时间Lat - 位置纬度 -90:90 -> S(-) N(+) Lon - 以度为单位的位置经度 -180:180 W(-) E(+) Alt - 以公里为单位的位置海拔高度输出： Az - 以度为单位的方位角El - 以度为单位的高程/高度角

简单的锁屏软件，屏蔽win键，屏蔽Alt+Tab键，屏蔽Ctrl+Alt+Del键，也可以修改屏蔽你自定义的按键，

In Hacker's Delight, Second Edition, Hank Warren once again compiles an irresistible collection of programming hacks: timesaving techniques, algorithms, and tricks that help programmers build more elegant and efficient software, while also gaining deeper insights into their craft. Warren's hacks are eminently practical, but they're also intrinsically interesting, and sometimes unexpected, much like the solution to a great puzzle. They are, in a word, a delight to any programmer who is excited by the opportunity to improve. Extensive additions in this edition include * A new chapter on cyclic redundancy checking (CRC), including routines for the commonly used CRC-32 code * A new chapter on error correcting codes (ECC), including routines for the Hamming code * More coverage of integer division by constants, including methods using only shifts and adds * Computing remainders without computing a quotient * More coverage of population count and counting leading zeros * Array population count * New algorithms for compress and expand * An LRU algorithm * Floating-point to/from integer conversions * Approximate floating-point reciprocal square root routine * A gallery of graphs of discrete functions * Now with exercises and answers