什么叫山马，什么又是XC？玩车子还有些什么分类，都是干什么的？
山地车主要的分类有5种：Trail、XC、AM、DH、FR，最常见的应该就是Trail了，就是两千来块的山地车基本上都是Trail，其次是XC；AM、DH、FR相对来说比较专业，车子一般都不便宜，好像都是五位 …
为什么叉乘运算中 (AxB)xC=-Cx (AxB)=B (C·A)-A (C·B)，它有什么几何意 …
Feb 19, 2022 · 道理很简单的。以 三维向量 为例，两个向量a ,b叉乘的结果是一个与它们都正交的向量c，它在一个过原点且与a，b所在平面垂直的直线上。这个直线是唯一的，但c向量取向可以有正反 …
c - #include <xc.h> not accepted - Stack Overflow
#include <xc.h> will only work if xc.h is in the include path. Have you tried #include "xc.h"? Or perhaps you didn't install the full library suite properly.
富士镜头35 选择XF还是XC？ - 知乎
噢，之前好奇过这个问题，简单说说富士35这三个的区别。 1、富士35mm F2，XC跟XF，最大的区别自然是价格，其次就是做工，一个金属，一个塑料，做工自然是金属更好，画质，两者其实半斤八两， …
Having trouble with delay function in MPLAB XC8 compiler
Aug 19, 2022 · You don't need an extra library, but in xc8 the name of the function is __delay_ms(...) with two _. Please remember, these functions are actually in line macros and they have maximum …
2025年山地车入门推荐（500到2500元新手如何选购 山地车最全性价比 …
Sep 2, 2025 · 山地自行车的特点就是皮实耐用，维修成本低，适应路况能力强，不管你是买来通勤或者是锻炼身体都是不二之选的。 二、挑选山地自行车方法 首先选车架，其实大致可分为两种：硬车架、 …
How to properly use __delay_ms() in libraries in MICROCHIP XC8?
Oct 23, 2020 · IF the problem hasn't resolved yet: You must declare "#define _XTAL_FREQ 500000" before you include the "xc.h" header file. Because __delay_ms () macro makes use of _XTAL_FREQ …
XC8 compiler does not recognize __delay macros - Stack Overflow
Jul 1, 2020 · I do have _XTAL_FREQ defined correctly and xc.h included. The code also compiles just fine without the delay macros, but than it doesn't work correctly, so I need the delay. I don't know …
Convert a number into a Roman numeral in JavaScript
There is a nice one here on this blog I found using google: http://blog.stevenlevithan.com/archives/javascript-roman-numeral-converter
MPLAB IDE Packs & XC8 Toolchains compatibility
May 24, 2022 · An "old" project compiled fine on an "old" computer (OS Windows 8) using MPLAB IDE with Pack 1.0.9 and toolchain v1.42. The identical project does not on my newer PC (OS Win 10)...