usb通用串行总线

jack插孔

就是把usb从板子上用线引出来。

- 回答 1 已采纳 ，我的dsp开发板上有个usb-jack接口，请问USB-JACK是干什么的，对不起没分了不好意思
- 5年前回答 1 已采纳 Description In the Blackjack card game, the player and the dealer are dealt two cards initially. One of dealer's cards is dealt face up and is known to the player but the other one is dealt face down. Given the two initial cards you are dealt and the dealer's face-up card, you are asked to compute the probability that your two-card hand is better than the dealer's two-card hand. This is not simple: the probability changes as the game is played because cards are dealt from the decks without replacement. To simplify the problem, we will only compute the probability when the cards are first dealt from the decks. That is, no cards have been dealt from the decks before. In this game, an Ace has a value of 1 or 11 (chosen by the person holding the cards), the face cards (K, Q, J) have a value of 10, and the values of the remaining cards are given by their numerical values. The player wins against the dealer if: the total value of the player's hand does not exceed 21; and the total value of his hand is higher than that of the dealer or the total value of the dealer's hand exceeds 21. The value of an Ace is chosen to maximize the total value without exceeding 21. If we are only interested in two-card hands, it is impossible for the total value to exceed 21. Skilled players remember which cards have already been dealt and make decisions accordingly. To make this difficult, many casinos use multiple decks of cards to play the game. Each deck has 52 cards, 4 of each of A, K, Q, J, T (10), 9, ..., and 2. Input The input consists of a number of test cases. Each test case starts with a line containing a positive integer n (n <= 10) indicating the number of decks used. This is followed by a line containing 3 characters (separated by a space) in the set {A, K, Q, J, T, 9, ..., 2}, representing the dealer's face-up card and your two cards in the hand. In each case, assume that the n decks have been shuffled together randomly. The end of input is specified by n = 0. Output For each hand dealt, print on a line the probability of winning as a percentage, rounded to 3 decimal places. Separate the output of each case by a blank line. Sample Input 1 T A J 4 2 3 4 0 Sample Output 93.878% 21.951%
- 4年前回答 1 已采纳 Description In the game of Jack Straws, a number of plastic or wooden "straws" are dumped on the table and players try to remove them one-by-one without disturbing the other straws. Here, we are only concerned with if various pairs of straws are connected by a path of touching straws. You will be given a list of the endpoints for some straws (as if they were dumped on a large piece of graph paper) and then will be asked if various pairs of straws are connected. Note that touching is connecting, but also two straws can be connected indirectly via other connected straws. Input Input consist multiple case,each case consists of multiple lines. The first line will be an integer n (1 < n < 13) giving the number of straws on the table. Each of the next n lines contain 4 positive integers,x1,y1,x2 and y2, giving the coordinates, (x1,y1),(x2,y2) of the endpoints of a single straw. All coordinates will be less than 100. (Note that the straws will be of varying lengths.) The first straw entered will be known as straw #1, the second as straw #2, and so on. The remaining lines of the current case(except for the final line) will each contain two positive integers, a and b, both between 1 and n, inclusive. You are to determine if straw a can be connected to straw b. When a = 0 = b, the current case is terminated. When n=0,the input is terminated. There will be no illegal input and there are no zero-length straws. Output You should generate a line of output for each line containing a pair a and b, except the final line where a = 0 = b. The line should say simply "CONNECTED", if straw a is connected to straw b, or "NOT CONNECTED", if straw a is not connected to straw b. For our purposes, a straw is considered connected to itself. Sample Input 7 1 6 3 3 4 6 4 9 4 5 6 7 1 4 3 5 3 5 5 5 5 2 6 3 5 4 7 2 1 4 1 6 3 3 6 7 2 3 1 3 0 0 2 0 2 0 0 0 0 0 1 1 1 2 2 1 2 0 0 0 Sample Output CONNECTED NOT CONNECTED CONNECTED CONNECTED NOT CONNECTED CONNECTED CONNECTED CONNECTED CONNECTED
- 4年前回答 1 已采纳 Ever since the incident on the hill, Jack and Jill dislike each other and wish to remain as distant as possible. Jack and Jill must attend school each day; Jack attends a boys' school while Jill attends a girls' school. Both schools start at the same time. You have been retained by their lawyers to arrange routes and a schedule that Jack and Jill will adhere to so as to maximize the closest straight-line distance between them at any time during their trip to school. Jack and Jill live in a town laid out as an n by n square grid (n <= 30). It takes 1 minute to walk from one location to an adjacent location. In maximizing the distance between Jack and Jill you need consider only the distance between the locations they visit (i.e. you need not consider any intermediate points on the path they take from grid location to grid location). Some locations are impassable due to being occupied by rivers, buildings, etc. Jack must start at his house and walk continuously until he gets to school. Jill must start at her house at the same time as Jack and walk continuously until she arrives at her school. Jack's house and school are impassable to Jill while Jill's house and school are impassable to Jack. Other grid locations that are impassable to both Jack and Jill are given in the input. Input Input will consist of several test cases. Each test case will consist of n, followed by n lines with n characters representing a map of the town. In the map, Jack's house is represented by 'H', Jack's school is represented by 'S', Jill's house is represented by 'h', Jill's school is represented by 's', impassable locations are represented by '*', and all other locations are represented by '.' You may assume the normal cartographic convention that North is at the top of the page and West is to the left. A line containing 0 follows the last case. Output For each input case you should give three lines of output containing: the closest that Jack and Jill come during the schedule (to 2 decimal places) Jack's route Jill's route. Each route is a sequence of directions that Jack or Jill should follow for each minute from the start time until arriving at school. Each direction is one of 'N', 'S', 'E', or 'W'. If several pairs of routes are possible, any one will do. You may assume there is at least one solution. Leave a blank line between the output for successive cases. Sample Input 10 .......... ...H...... .**...s... .**....... .**....... .**....... .**....... .**....... ...S..h..* .......... 0 Sample Output 6.71 WWWSSSSSSSEEE NEEENNNNNWWW
- 5年前回答 2 已采纳 Description A team of airborne troops are ready to complete some missions. The battlefield was divided into a grid of n*n, this team can be air-dropped at any place on time 0. In every time unit after landing, they can go to the grid left, right, up or down to the current grid, or they can just stay. On their mission list, each mission is described as three integers: t, r and c, represents a task that must be completed exactly at time t on the grid (r, c). Obviously, with limits of time, not all missions can be done. The captain, Jack, struggling making decisions, wants to know how many missions they can complete at most. Input The input contains serveral cases: For each case: * The first line contains two integers n and m, 1<=n<=1000, 1<=m<=10000, n represents the size of the battlefield and m represents the number of missions on the list. * Following m lines, each one describes a mission using three integers, t, r and c. No two missions have the same t, r and c. The input is terminated by n=m=0. Output One integer in one line represents the maximum number of mission that can be completed. Sample Input 2 2 1 1 1 2 2 2 0 0 Sample Output 1
- ThinkWon的博客 文章目录数据库基础知识为什么要使用数据库什么是SQL？什么是MySQL?数据库三大范式是什么mysql有关权限的表都有哪几个MySQL的binlog有有几种录入格式？分别有什么区别？数据类型mysql有哪些数据类型引擎MySQL存储引擎MyISAM与InnoDB区别MyISAM索引与InnoDB索引的区别？InnoDB引擎的4大特性存储引擎选择索引什么是索引？索引有哪些优缺点？索引使用场景（重点）...
- songtao542的博客 编译时蛋疼问题记录： FAILED: setup-jack-server Jack server installation not found 到prebuilts/sdk/tools 目录下执行一下这个命令：./jack-admin install-server jack-launcher.jar jack-server-4.11.ALPHA.jar jack-launcher.j
- 3年前吐泡的土豆的博客 一、服务器上的jack编译报错，修改ok，已验证Communication error with Jack server (60), try 'jack-diagnose' or see Jack server logFailed to authenticate Jack server certificate. Try 'jack-diagnose'Failed to authenticate J...
- 涤生手记的博客 windows下python常用库的安装，前提安装了annaconda 的python开发环境。只要已经安装了anaconda，要安装别的库就很简单了。只要使用pip即可，正常安装好python，都会自带pip安装 工具，在python的scripts安装目录下可以查看。具体安装步骤：使用Anaconda在windows下管理python开发环境 python常用库的安装是pytho...
- i.code的博客 本来jack-server挺好的，也成功编译了一次android7.1.2源代码。改天不知怎么了，再编译时报错：communication error with Jack server (1)，上网查，类似报错多为（58）、（77）等，（1）的一个没找到。硬着头皮用相关方法进行排查： （1）称端口问题，要求修改两个本地文件中的两个端口。检索发现本地安装目录下有.jack-settings文件，无...
- 2年前HuCheng1997的博客 Oracle学习：Oracle基础语句、Oracle表查询关键字、Oracle常用函数、Oracle常用结构
- 2年前李亚飞的博客的博客 title: 第五章 Linux实操篇 categories: Linux tags: linux typora-root-url: … abbrlink: 93414991 date: 2019-08-15 15:27:58 第五章 Linux实操篇 远程登录Linux系统 5.1 为什么要远程登录服务器 5.2 xhell5(windows)远程登录软件 需要Linux开启sshd服...
- 3年前zhao Jack的博客 实现如下的分段函数： m={t0≤t&amp;amp;amp;lt;1−t+21&amp;amp;amp;lt;t≤20.1其他 m=\left\{ \begin{array}{rcl} t &amp;amp;amp;amp; &amp;amp;amp;amp; {0 \leq t &amp;amp;amp;lt;1}\\ -t+2 &amp;amp;amp;amp; &amp;amp;amp;amp; {1 &amp;amp;am
- zhTse的博客 准备今天正式担任Android7.0(N)项目模块的开发和维护工作，借此机会git和make了一套系统代码用来研究。在编译的过程中，与以往系统不同的是Android7.0系统编译工具链使用了全新的Jack server来取代以往的编译器工具，所以在编译的过程中可能出现一些小问题，后面将为大家总结介绍！Jack server一、介绍我们先来看一下关于Jack server官方介绍： Jack is
- 2年前Jack魏的博客 Anaconda安装教程1.官网下载2.安装3.查看安装4.使用 1.官网下载 https://www.anaconda.com/ 2.安装 这一步会比较慢 3.查看安装 # 检测版本 conda --version # 检测更新 conda update conda 4.使用 ...
- Moltanix的博客 编译时蛋疼问题记录： FAILED: setup-jack-server Jack server installation not found 到prebuilts/sdk/tools 目录下执行一下这个命令：./jack-admin install-server jack-launcher.jar jack-server-4.11.ALPHA.jar jack-launcher.jar
- 轻舟不载愁的博客 Jackcheng刚入初中时成绩是相当棒的，尤其令老师们感到惊奇的这孩子会编程。殊不知随着堕入游戏的魔道之中，Jackcheng仅有的编程知识不仅毫无长进，而且大大退化了。 这天他的数学老师突然了有了一个吃惊的想法，想通过促进学生们进行一些编程知识的学习，锻炼他们的逻辑能力，让学生们更好的学习math 。 因此他想起了Jackcheng 。 Jackcheng真的慌了 ， 他不得不又向你求救了。 ...
- 2年前huaishu的博客 Level 4 Unit 1 1/4 Listening Lesson 1 Visiting a Friend 1-2 Lesson2 Vocabulary Lesson 3 Pains and Sickness Lesson 4 Landforms Dialogue Lesson 5 Eating Out 2/4 Listening Lesson 1 A Trip to...
- Python-Jack的博客 随着人工智能的发展，Python近两年也是大火，越来越多的人加入到Python学习大军，对于毫无基础的人该如何入门Python呢？这里整理了一些个人经验和Python入门教程供大家参考。 如果你是零基础入门 Python 的话，建议初学者至少达到两个目标： 会用，理解。 会用 通过 Python 入门教程，学习 Python 的语法，熟悉 Python 标准库的使用。 目前 Python 官方已...
- Simon_Crystin的博客 出现这个问题主要是因为虚拟机内存不足；下面给出两个解决方案：1.修改jack编译并行数：SERVER_NB_COMPILE； 在 根目录中的.jack文件中； 默认并行数为4，改为2；SERVER_NB_COMPILE=22.增加内存，然后重启下jack server （推荐）export JACK_SERVER_VM_ARGUMENTS="-Dfile.encoding=UTF-8 -XX:+