基本思想：收到intel的开发板-小挪吒，正好手中也有oak相机，反正都是openvino一套玩意，进行评测一下，竟然默认是个window系统，刷成linux系统，测试比较方便，虽然window+python代码也可以开发

Given a string containing digits from 2-9 inclusive, return all possible letter combinations that the number could represent.A mapping of digit to letters (just like on the telephone buttons) is giv..

基本思想：sections在OpenMP里面属于分迭代任务的分担，总感觉这玩意像FPGA硬件逻辑代码中的分段模块(1)分段执行代码逻辑sections#pragma omp parallel sections{#pragma omp sectionfor (int i = 0; i < num/2; i++) {.....}#pragma omp sectionfor (int i = nu