feet

C Primer Plus第六版编程练习5.4

可紊 提交于 2020-02-29 12:17:19
新手欢迎指正 5.4 #include <stdio.h> #define FEET 2.54 #define INCH 30.48 int main(void) { float h=0,inch=0; int feet=0; printf(“Please enter a height in centimeters(<=0 to quit):\n”); scanf("%f",&h); while(h>0) { feet=(int)(h/INCH); inch=(h-feet*INCH)/FEET; printf("%.1f cm=%d feet,%.1f inches\n",h,feet,inch); printf(“Please enter a height in centimeters:\n”); scanf("%f",&h); } / float a,b,c,d,f=0; printf(“Please enter a height in centimeters:\n”); scanf("%f",&a); while ( a>0){ const int m=12; int e; b=a/2.54; c=b/m; printf("%f\n",c); e=(int)c; printf("%d\n",e); d=b-m e; f= printf("%.1f cm=%d feet,%

第三章第六题(健康应用:BMI)(Health application: BMI)

早过忘川 提交于 2020-02-05 03:48:24
*3.6(健康应用:BMI)修改程序清单3-4,让用户输入重量、英尺和英寸。例如一个人身高是5英尺10英寸,输入的英尺值就是5、英寸值为10。注意:1英尺=0.3048米。 下面是一个运行示例: Enter weight in pounds:140 Enter feet:5 Enter inches:10 BMI is 20.087702275404553 *3.6(Health application: BMI) Revise Listing 3.4, ComputeAndInterpretBMI.java, to let the user enter weight, feet, and inches. For example, if a person is 5 feet and 10 inches, you will enter 5 for feet and 10 for inches. Here is a sample run: Enter weight in pounds:140 Enter feet:5 Enter inches:10 BMI is 20.087702275404553 下面是参考答案代码: import java . util . * ; public class ComputeAndInterpretBMIQuestion6 { public

《the Great Gatsby》Day 25

ぃ、小莉子 提交于 2020-02-04 03:10:30
1.单词回顾 revolting adj令人厌恶的,违反...的,revolt的现在分词形式 babble v牙牙学语,泄露(秘密) n儿语,胡言乱语 partake v分享,参与,分担 n参与者,分担者 clergyman n牧师,教士 suffocate v使窒息,被闷死,受阻 2.大概内容 Tom心乱如麻,一小时前还尽在掌握的情妇和夫人,却都要离他而去。。。在酒店房间里,Tom忽然将话题引向了Gatsby,质疑他是否真的在牛津大学接受教育,还质问他来参加这场午宴的真是目的。在Tom和Gatsby的撕逼中,Tom成功咬住了G的出身问题,挑明了他所得尽不义之财,甚至逼其露出凶相、风度尽失,使G在Daisy心中的形象一落千丈。 3.好词佳句 (1)Gatsby sprang to his feet,vivid with excitement. struggle/get/spring to one’s feet 跳起来 (2)drop an octave lower 声音的音阶降低,octave表示八度音阶 (3)over the counter 即我们说的OTC非处方药,消费者可以直接在药店购买 (4)far wrong 错的离谱 (5)Before me strtched the portentous,menacing road of a new decade. 倒装语序

第二章第三题(将英尺转换为米)(convert feet to meters)

谁都会走 提交于 2020-01-31 02:21:02
2.3(将英尺转换为米)编写程序,读入英尺数,将其转换成米数并显示结果。1英尺等于0.305米。 下面是运行示例: Enter a value for feet:16.5 16.5 feet is 5.0325 meters 2.3(convert feet to meters) Write a program that reads a number in feet,convert it to meters,and displays the result.one foot is 0.305 meter. Here is a simple run: Enter a value for feet:16.5 16.5 feet is 5.0325 meters 下面是参考答案代码: import java . util . * ; public class ConvertFeetToMetersQuestion3 { public static void main ( String [ ] args ) { double Feet , Meters ; System . out . print ( "Enter a value for feet : " ) ; Scanner FeetInput = new Scanner ( System . in ) ; Feet =

d-feet not show dbus path and Interface

断了今生、忘了曾经 提交于 2019-12-06 07:48:18
使用d-feet查看dbus程序时,系统原有的d-feet程序显示path和interface等信息,但是自己写的程序虽然在d-feet中能够识别,却不显示path和interface等信息。经过调查发现,d-feet调用程序的org.freedesktop.DBus.Introspectable接口(Interface)下的Introspect函数(Method)。实现了这个接口,返回字符串格式的xml,然后d-feet中就能显示了。 返回字符串格式如下: "<!DOCTYPE node PUBLIC \"-//freedesktop//DTD D-BUS Object Introspection 1.0//EN\" \n" "\"http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd\">\n" "<node>\n" " <interface name=\"org.freedesktop.DBus.Introspectable\">\n" " <method name=\"Introspect\">\n" " <arg name=\"data\" direction=\"out\" type=\"s\"/>\n" " </method>\n" " </interface>\n" " <interface name

dbus介绍

那年仲夏 提交于 2019-12-06 07:30:13
dbus实例讲解(一):初次见面 网上有不少介绍dbus的文章。本文的目标是补充一些简单的例子。 1、dbus是什么东西? 网上有一篇叫“ D-Bus Tutorial ”的文章,流传较广。不少介绍dbus的资料,都引用了其中的段落。 其实相对于这篇文章,我建议大家直接读“ D-Bus Specification ”,篇幅不算长, 文字也不算枯燥。 D-Bus是针对桌面环境优化的IPC(interprocess communication )机制,用于进程间的通信或进程与内核的通信。最基本的D-Bus协议是一对一的通信协议。 但在很多情况下,通信的一方是消息总线。消息总线是一个特殊的应用,它同时与多个应用通信,并在应用之间传递消息。下面我们会在实例中观察消息总线的作用。 消息总线的角色有点类似与X系统中的窗口管理器,窗口管理器既是X客户,又负责管理窗口。 支持dbus的系统都有两个标准的消息总线:系统总线和会话总线。系统总线用于系统与应用的通信。会话总线用于应用之间的通信。 网上有一个叫d-feet的python程序,我们可以用它来观察系统中的dbus世界。 图1、由d-feet观察到的D-Bus世界 D-Bus是一个程序。它提供了API。但我们一般不会直接使用dbus的接口。dbus-glib是GTK版本的dbus接口封装。 本文假设读者安装了dbus-glib

Ternary operator left associativity

匿名 (未验证) 提交于 2019-12-03 02:44:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: In the PHP manual, I find the following 'user contributed note' under "Operators". Note that in php the ternary operator ?: has a left associativity unlike in C and C++ where it has right associativity. You cannot write code like this (as you may have accustomed to in C/C++): I actually try it and it really prints four . However I could not understand the reason behind it and still feel it should print two or other . Can someone please explain what is happening here and why it is printing 'four'? 回答1: In any sane language, the ternary

Django: Assigning ForeignKey - Unable to get repr for class

匿名 (未验证) 提交于 2019-12-03 00:56:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: I ask this question here because, in my searches, this error has been generally related to queries rather than ForeignKey assignment. The error I am getting occurs in a method of a model. Here is the code: class Deal(models.Model): ...model_fields... def _update_existing_deal(self, deal_dict): #deal made from deal_dict here, psuedo code below deal = Deal(deal_dict) HistoricalDeal().create_historical_deal(deal) self.price = deal_dict.get('price', self.price) if self.comment != deal_dict.get['comment']: self.comment = deal_dict.get('comment',

3.InfluxDB-InfluxQL基础语法教程--数据说明

梦想的初衷 提交于 2019-12-01 16:08:35
下面是本次演示的示例数据 表名 : h2o_feet 数据示例 : 数据描述 : 表h2o_feet中所存储的是6分钟时间区间内的数据。 该表有一个tag,即location,该tag有两个值,分别为coyote_creek 和santa_monica,使用如下方式可以查询: 该表有两个fields,分别为level description和water_level,其中level description存储的是string类型的值,而water_level存储的是float类型的值。查询方式如下: 来源: https://www.cnblogs.com/suhaha/p/11692056.html

forever at your feet

流过昼夜 提交于 2019-11-27 19:07:59
A locket on a chain A bow that's made from rain A briar grows entwined with rose I've come to be forever at your feet 项链上的小吊盒 雨水划出的弧线 缠绕着月季的野蔷薇 我将与你永相随 A blossom pages pressed A knocking at my chest Oh, winding road please take me home I long to be forever at your feet 夹在书页里的花 胸口怦怦响的心跳 蜿蜒的路啊,请你带我回家 我期望与你永相随 And I hope that you won't mind, my dear When you see my eyes are lined, my dear It's because I've waited all these years 亲爱的,希望你别介意 亲爱的,如果你看到我眼角的皱纹 那是因为我已等候多年 For your kisses sweeter than milk And your touch that's softer than silk For your treasures I will be forever at your feet