【QT】day6

在这里插入图片描述

#include "home.h"
#include "ui_home.h"Home::Home(QWidget *parent): QWidget(parent), ui(new Ui::Home)
{ui->setupUi(this);// 从配置文件读取用户名QSettings settings("kim", "ad");username = settings.value("username").toString();usertype = settings.value("usertype").toString();ui->usertypelabel->setText(usertype);if(usertype=="学生"){ui->listframe->hide();ui->setframe->hide();ui->mainframe->hide();QFrame *stuframe = new QFrame();stuframe->setParent(this);stuframe->setStyleSheet("width:100px;height:100px;background-color: rgb(250, 250, 250);");stuframe->move(100,0);teachEdit = new QLineEdit(this);teachEdit->move(200,50);teachEdit->setStyleSheet("background-color:#ffffff;color:#000000;width:200px;height:30px;border-radius:7px;color:#000000;padding-left:10px;");teachEdit->setPlaceholderText("请输入教师账号");adkeyEdit = new QLineEdit(this);adkeyEdit->move(200,90);adkeyEdit->setStyleSheet("background-color:#ffffff;color:#000000;width:200px;height:30px;border-radius:7px;color:#000000;padding-left:10px;");adkeyEdit->setPlaceholderText("请输入签到验证码");adkeybtn = new QPushButton(this);adkeybtn->move(200,170);adkeybtn->setText("签到");adkeybtn->setStyleSheet("background-color:#000000;color:#ffffff;width:200px;height:40px;border-radius:7px;");connect(adkeybtn, &QPushButton::clicked, this, &Home::onAdKeyBtnClicked);stuHintLable = new QLabel(this);stuHintLable->move(210,140);stuHintLable->setFixedWidth(200);stuHintLable->setStyleSheet("color:rgb(222, 60, 51);height:40px;");}ui->usernamelabel->setText(username);ui->usertypelabel->setAlignment(Qt::AlignCenter);closeAllpage();openAdPage();
}Home::~Home()
{delete ui;
}void Home::onAdKeyBtnClicked() {if(teachEdit->text()==""){stuHintLable->setText("教师账号不能为空");stuHintLable->setStyleSheet("color:rgb(222, 60, 51);height:40px;");}else if(adkeyEdit->text()==""){stuHintLable->setText("签到激活码不能为空");stuHintLable->setStyleSheet("color:rgb(222, 60, 51);height:40px;");}else{socket = new QTcpSocket(this);socket->connectToHost(ip,port);connect(socket,&QTcpSocket::connected,this,&Home::stuad_connected_slot);connect(socket,&QTcpSocket::readyRead,this,&Home::stuad_readyRead_slot);}}void Home::startad_connected_slot()
{struct data user;user.type=STARTAD;user.username=username;user.value=generateRandomString(6);ui->hintlable_3->setText("签到码："+user.value);ui->startattendancebtn->setStyleSheet("background-color:#ffffff;border-radius:7px;border:1px solid #000000;color:#000000;");socket->write(user.toByteArray());
}void Home::startad_readyRead_slot()
{QByteArray rawData = socket->readAll();const char* rawCharArray = rawData.constData();socketinfo receivedInfo;memcpy(&receivedInfo, rawCharArray, sizeof(socketinfo));outputlog(receivedInfo.data);socket->disconnectFromHost();
}void Home::endad_connected_slot()
{struct data user;user.type=ENDAD;user.username=username;user.value="123";ui->hintlable_3->setText("");ui->startattendancebtn->setStyleSheet("background-color:#000000;border-radius:7px;color:#ffffff;");socket->write(user.toByteArray());
}void Home::endad_readyRead_slot()
{QByteArray rawData = socket->readAll();const char* rawCharArray = rawData.constData();socketinfo receivedInfo;memcpy(&receivedInfo, rawCharArray, sizeof(socketinfo));outputlog(receivedInfo.data);socket->disconnectFromHost();
}void Home::addname_connected_slot()
{struct data user;user.type=NAMEADD;user.username=username;user.value=ui->funcinput->text();socket->write(user.toByteArray());
}void Home::addname_readyRead_slot()
{QByteArray rawData = socket->readAll();const char* rawCharArray = rawData.constData();socketinfo receivedInfo;memcpy(&receivedInfo, rawCharArray, sizeof(socketinfo));outputlog("【"+ui->funcinput->text()+"】"+receivedInfo.data);ui->funcinput->clear();socket->disconnectFromHost();
}void Home::getAllName_connected_slot()
{struct data user;user.type=NAMEGETALL;user.username=username;user.value="123";socket->write(user.toByteArray());
}void Home::getAllName_readyRead_slot()
{QByteArray rawData = socket->readAll();const char* rawCharArray = rawData.constData();socketinfo receivedInfo;memcpy(&receivedInfo, rawCharArray, sizeof(socketinfo));QString receivedData(receivedInfo.data);QStringList records = receivedData.split("|", Qt::SkipEmptyParts);// 遍历每个记录ui->settable->setRowCount(records.size());for (int row = 0; row < records.size(); ++row) {// 以 '\n' 分割记录中的行QStringList lines = records[row].split("\n", Qt::SkipEmptyParts);// 遍历每行并添加到QTableWidget中for (int col = 0; col < lines.size(); ++col) {// 以 ':' 分割键和值QStringList keyValue = lines[col].split("&", Qt::SkipEmptyParts);QString key = keyValue[0].trimmed();QString value = keyValue[1].trimmed();QTableWidgetItem *item = new QTableWidgetItem(value);ui->settable->setItem(row, col, item);item->setTextAlignment(Qt::AlignCenter);}}ui->settable->setColumnWidth(0, 50);ui->settable->setColumnWidth(1, 100);ui->settable->setColumnWidth(2, 180);socket->disconnectFromHost();
}void Home::deletename_connected_slot()
{QList<QTableWidgetItem *> selectedItems = ui->settable->selectedItems();if (!selectedItems.isEmpty()) {int selectedRow = selectedItems.first()->row();QTableWidgetItem *item1 = ui->settable->item(selectedRow, 0);QString content1 = item1->text();struct data user;user.type=NAMEDELETE;user.username=username;user.value=content1;socket->write(user.toByteArray());} else {qDebug() << "No row selected.";}
}void Home::deletename_readyRead_slot()
{QByteArray rawData = socket->readAll();const char* rawCharArray = rawData.constData();socketinfo receivedInfo;memcpy(&receivedInfo, rawCharArray, sizeof(socketinfo));outputlog(receivedInfo.data);socket->disconnectFromHost();
}void Home::searchname_connected_slot()
{struct data user;user.type=NAMESEARCH;user.username=username;user.value=ui->funcinput->text();socket->write(user.toByteArray());
}void Home::searchname_readyRead_slot()
{QByteArray rawData = socket->readAll();const char* rawCharArray = rawData.constData();socketinfo receivedInfo;memcpy(&receivedInfo, rawCharArray, sizeof(socketinfo));QString receivedData(receivedInfo.data);QStringList records = receivedData.split("|", Qt::SkipEmptyParts);// 遍历每个记录ui->settable->setRowCount(records.size());for (int row = 0; row < records.size(); ++row) {// 以 '\n' 分割记录中的行QStringList lines = records[row].split("\n", Qt::SkipEmptyParts);// 遍历每行并添加到QTableWidget中for (int col = 0; col < lines.size(); ++col) {// 以 ':' 分割键和值QStringList keyValue = lines[col].split("&", Qt::SkipEmptyParts);QString key = keyValue[0].trimmed();QString value = keyValue[1].trimmed();QTableWidgetItem *item = new QTableWidgetItem(value);ui->settable->setItem(row, col, item);item->setTextAlignment(Qt::AlignCenter);}}ui->settable->setColumnWidth(0, 50);ui->settable->setColumnWidth(1, 100);ui->settable->setColumnWidth(2, 180);socket->disconnectFromHost();
}void Home::getadList_connected_slot()
{struct data user;user.type=NAMEHISTORY;user.username=username;user.value="123";socket->write(user.toByteArray());
}void Home::getadList_readyRead_slot()
{QByteArray rawData = socket->readAll();const char* rawCharArray = rawData.constData();socketinfo receivedInfo;memcpy(&receivedInfo, rawCharArray, sizeof(socketinfo));QString receivedData(receivedInfo.data);QStringList records = receivedData.split("|", Qt::SkipEmptyParts);// 遍历每个记录ui->settable->setRowCount(records.size());for (int row = 0; row < records.size(); ++row) {// 以 '\n' 分割记录中的行QStringList lines = records[row].split("\n", Qt::SkipEmptyParts);// 遍历每行并添加到QTableWidget中for (int col = 0; col < lines.size(); ++col) {// 以 ':' 分割键和值QStringList keyValue = lines[col].split("&", Qt::SkipEmptyParts);QString key = keyValue[0].trimmed();QString value = keyValue[1].trimmed();QTableWidgetItem *item = new QTableWidgetItem(value);ui->settable->setItem(row, col, item);item->setTextAlignment(Qt::AlignCenter);}}ui->settable->setColumnWidth(0, 50);ui->settable->setColumnWidth(1, 80);ui->settable->setColumnWidth(2, 80);ui->settable->setColumnWidth(3, 160);socket->disconnectFromHost();
}void Home::stuad_connected_slot()
{struct data user;user.type=STUAD;user.username=username;user.value=teachEdit->text();user.value1=adkeyEdit->text();socket->write(user.toByteArray());
}void Home::callname_connected_slot()
{struct data user;user.type=NAMECALL;user.username=username;user.value="123";user.value1="123";socket->write(user.toByteArray());
}void Home::callname_readyRead_slot()
{QByteArray rawData = socket->readAll();const char* rawCharArray = rawData.constData();socketinfo receivedInfo;memcpy(&receivedInfo, rawCharArray, sizeof(socketinfo));outputlog(receivedInfo.data);socket->disconnectFromHost();
}void Home::stuad_readyRead_slot()
{QByteArray rawData = socket->readAll();const char* rawCharArray = rawData.constData();socketinfo receivedInfo;memcpy(&receivedInfo, rawCharArray, sizeof(socketinfo));stuHintLable->setText(receivedInfo.data);stuHintLable->setStyleSheet("color:rgb(26, 136, 35);height:40px;");socket->disconnectFromHost();
}void Home::on_startattendancebtn_clicked()
{if(ui->startattendancebtn->text()=="发起签到"){socket = new QTcpSocket(this);socket->connectToHost(ip,port);connect(socket,&QTcpSocket::connected,this,&Home::startad_connected_slot);connect(socket,&QTcpSocket::readyRead,this,&Home::startad_readyRead_slot);ui->startattendancebtn->setText("关闭签到");}else{socket = new QTcpSocket(this);socket->connectToHost(ip,port);connect(socket,&QTcpSocket::connected,this,&Home::endad_connected_slot);connect(socket,&QTcpSocket::readyRead,this,&Home::endad_readyRead_slot);ui->startattendancebtn->setText("发起签到");ui->startattendancebtn->setStyleSheet("background-color:#000000;border-radius:7px;color:#ffffff;");}}void Home::outputlog(QString msg)
{ui->adEdit->setText("【"+getCurretTime()+"】"+msg+"\n"+ui->adEdit->toPlainText());
}QString Home::getCurretTime()
{QTime systime = QTime::currentTime();QString s = systime.toString("hh:mm:ss");return s;
}QString Home::generateRandomString(int length) {const QString charset = "123456789abcdefghijklmnpqrstuvwxyz";QString randomString;for (int i = 0; i < length; ++i) {int randomIndex = QRandomGenerator::global()->bounded(charset.length());randomString.append(charset.at(randomIndex));}return randomString;
}void Home::closeAllpage()
{ui->hintframe->hide();ui->hintframe_2->hide();ui->startattendancebtn->hide();ui->setmainframe->hide();ui->callnamebtn->hide();
}void Home::openAdPage()
{ui->hintframe->show();ui->hintframe_2->show();ui->startattendancebtn->show();ui->callnamebtn->show();this->setWindowTitle("签到管理系统v1.0-签到");
}void Home::openListPage()
{this->setWindowTitle("签到管理系统v1.0-记录");ui->setmainframe->show();ui->funcinput->hide();ui->addbtn->hide();ui->searchbtn->hide();ui->deletebtn->hide();ui->backbtn->hide();QStringList headerLabels;headerLabels << "ID" << "姓名" << "签到码" << "签到时间";ui->settable->setHorizontalHeaderLabels(headerLabels);ui->settable->verticalHeader()->setVisible(false);ui->settable->setColumnCount(4);ui->settable->setStyleSheet("QScrollBar:vertical {""    background: #ffffff;""    width: 10px;""    margin: 16px 0px 16px 0px;""}""QScrollBar::handle:vertical {""    background: rgb(78, 79, 79);""    min-height: 10px;""}""QScrollBar::add-line:vertical, QScrollBar::sub-line:vertical {""    border: none;""    background: none;""}""QScrollBar::add-page:vertical, QScrollBar::sub-page:vertical {""    background: none;""}""#settable{background-color:#ffffff;color:#000000;}""QTableWidget::item:selected {""    background-color: #eeeeee;""color:#000000;""}");socket = new QTcpSocket(this);socket->connectToHost(ip,port);connect(socket,&QTcpSocket::connected,this,&Home::getadList_connected_slot);connect(socket,&QTcpSocket::readyRead,this,&Home::getadList_readyRead_slot);for (int row = 0; row < ui->settable->rowCount(); ++row) {for (int col = 0; col < ui->settable->columnCount(); ++col) {QTableWidgetItem *item = new QTableWidgetItem(QString("Row %1, Col %2").arg(row + 1).arg(col + 1));// 设置文本居中item->setTextAlignment(Qt::AlignCenter);}}
}void Home::openSetPage()
{this->setWindowTitle("签到管理系统v1.0-设置");ui->setmainframe->show();ui->funcinput->show();ui->addbtn->show();ui->searchbtn->show();ui->deletebtn->show();ui->backbtn->show();QStringList headerLabels;headerLabels << "ID" << "姓名" << "添加时间";ui->settable->setHorizontalHeaderLabels(headerLabels);ui->settable->verticalHeader()->setVisible(false);ui->settable->setColumnCount(3);ui->settable->setColumnWidth(2, 500);ui->settable->setStyleSheet("QScrollBar:vertical {""    background: #ffffff;""    width: 10px;""    margin: 16px 0px 16px 0px;""}""QScrollBar::handle:vertical {""    background: rgb(78, 79, 79);""    min-height: 10px;""}""QScrollBar::add-line:vertical, QScrollBar::sub-line:vertical {""    border: none;""    background: none;""}""QScrollBar::add-page:vertical, QScrollBar::sub-page:vertical {""    background: none;""}""#settable{background-color:#ffffff;color:#000000;}""QTableWidget::item:selected {""    background-color: #eeeeee;""color:#000000;""}");socket = new QTcpSocket(this);socket->connectToHost(ip,port);connect(socket,&QTcpSocket::connected,this,&Home::getAllName_connected_slot);connect(socket,&QTcpSocket::readyRead,this,&Home::getAllName_readyRead_slot);for (int row = 0; row < ui->settable->rowCount(); ++row) {for (int col = 0; col < ui->settable->columnCount(); ++col) {QTableWidgetItem *item = new QTableWidgetItem(QString("Row %1, Col %2").arg(row + 1).arg(col + 1));// 设置文本居中item->setTextAlignment(Qt::AlignCenter);}}}void Home::on_callbtn_2_clicked()
{closeAllpage();openListPage();
}void Home::on_callbtn_clicked()
{closeAllpage();openAdPage();
}void Home::on_callbtn_3_clicked()
{closeAllpage();openSetPage();
}void Home::on_callnamebtn_clicked()
{socket = new QTcpSocket(this);socket->connectToHost(ip,port);connect(socket,&QTcpSocket::connected,this,&Home::callname_connected_slot);connect(socket,&QTcpSocket::readyRead,this,&Home::callname_readyRead_slot);
}void Home::on_addbtn_clicked()
{socket = new QTcpSocket(this);socket->connectToHost(ip,port);connect(socket,&QTcpSocket::connected,this,&Home::addname_connected_slot);connect(socket,&QTcpSocket::readyRead,this,&Home::addname_readyRead_slot);
}void Home::on_deletebtn_clicked()
{socket = new QTcpSocket(this);socket->connectToHost(ip,port);connect(socket,&QTcpSocket::connected,this,&Home::deletename_connected_slot);connect(socket,&QTcpSocket::readyRead,this,&Home::deletename_readyRead_slot);}void Home::on_backbtn_clicked()
{// 创建 Widget 窗口Widget *w = new Widget();// 显示 Widget 窗口w->show();// 关闭当前 Home 窗口this->close();
}void Home::on_searchbtn_clicked()
{socket = new QTcpSocket(this);socket->connectToHost(ip,port);connect(socket,&QTcpSocket::connected,this,&Home::searchname_connected_slot);connect(socket,&QTcpSocket::readyRead,this,&Home::searchname_readyRead_slot);
}

本文来自互联网用户投稿，该文观点仅代表作者本人，不代表本站立场。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如若转载，请注明出处：http://xiahunao.cn/news/2775749.html

如若内容造成侵权/违法违规/事实不符，请联系瞎胡闹网进行投诉反馈，一经查实，立即删除！

相关文章

Android矩阵Matrix动画缩放Bitmap移动手指触点到ImageView中心位置，Kotlin

Android矩阵Matrix动画缩放Bitmap移动手指触点到ImageView中心位置，Kotlin

Android矩阵Matrix动画缩放Bitmap移动手指触点到ImageView中心位置&#xff0c;Kotlin 借鉴 Android双指缩放ScaleGestureDetector检测放大因子大图移动到双指中心点ImageView区域中心&#xff0c;Kotlin&#xff08;2&#xff09;-CSDN博客 在此基础上实现手指在屏幕上点击后&…
阅读更多...
[word] word 2010宏已被禁用警告关闭方法 #媒体#学习方法

[word] word 2010宏已被禁用警告关闭方法 #媒体#学习方法

word 2010宏已被禁用警告关闭方法 Word2010宏已被禁用警告关闭方法&#xff1a;在「信任中心设置」选项的宏设置中选择「禁用所有宏&#xff0c;并且不通知」即可。 每次打开Word 2010&#xff0c;都会提示「完全警告&#xff1a;宏已被禁用」提示。自从Word 2010安装完毕&am…
阅读更多...
Qt安装配置教程windows版（包括：Qt5.8.0版本，Qt5.12，Qt5.14版本下载安装教程）（亲测可行）

Qt安装配置教程windows版（包括：Qt5.8.0版本，Qt5.12，Qt5.14版本下载安装教程）（亲测可行）

目录 Qt5.8.0版本安装教程Qt5.8.0版本下载安装 Qt5.12.2版本安装教程下载安装 Qt 5.14.2安装教程下载安装和创建项目 参考视频 QT为嵌入式系统提供了大量的库和可重用组件。 WPS Office&#xff0c;咪咕音乐&#xff0c;Linux桌面环境等都是QT开发的。 Qt5.8.0版本安装教程 Q…
阅读更多...
P3647 题解

P3647 题解

文章目录 P3647 题解OverviewDescriptionSolutionLemmaProof Main Code P3647 题解 Overview 很好的题&#xff0c;但是难度较大。 模拟小数据&#xff01;——【数据删除】 Description 给定一颗树&#xff0c;有边权&#xff0c;已知这棵树是由这两个操作得到的&#xff1…
阅读更多...
上海亚商投顾：成交量突破万亿 沪指重回2800

上海亚商投顾：成交量突破万亿 沪指重回2800

上海亚商投顾前言&#xff1a;无惧大盘涨跌&#xff0c;解密龙虎榜资金&#xff0c;跟踪一线游资和机构资金动向&#xff0c;识别短期热点和强势个股。 一.市场情绪 昨日A股三大指数延续上涨&#xff0c;深成指领涨&#xff0c;沪指重新站上2800点。不过&#xff0c;指数黄白分…
阅读更多...
npm 下载报错

npm 下载报错

报错信息 : 证书过期 (CERT_HAS_EXPIRED) D:\Apps\nodejs-v18.16.1\npx.cmd --yes create-next-app"latest" . --ts npm ERR! code CERT_HAS_EXPIRED npm ERR! errno CERT_HAS_EXPIRED npm ERR! request to https://registry.npm.taobao.org/create-next-app failed…
阅读更多...
【Java八股面试系列】JVM-常见参数设置

【Java八股面试系列】JVM-常见参数设置

目录 堆内存相关 显式指定堆内存–Xms和-Xmx 显式新生代内存(Young Generation) 显式指定永久代/元空间的大小 垃圾收集相关 垃圾回收器 GC 日志记录 处理 OOM JDK监控和故障处理工具总结 堆内存相关 Java 虚拟机所管理的内存中最大的一块&#xff0c;Java 堆是所有线…
阅读更多...
9.4不同路径（LC62-M）

9.4不同路径（LC62-M）

算法&#xff1a; 动规五部曲&#xff1a; 1.确定dp数组及下标 dp是二维数组→网格 dp[i][j] &#xff1a;表示从&#xff08;0 &#xff0c;0&#xff09;出发&#xff0c;到(i, j) 有dp[i][j]条不同的路径。 2.确定递归公式 dp[i][j]的来源&#xff1a;dp[i - 1][j] 和…
阅读更多...
HarmonyOS ArkTS修改App的默认加载的界面（二十）

HarmonyOS ArkTS修改App的默认加载的界面（二十）

前言&#xff1a;在Android开发中想要修改默认启动页&#xff0c;只需要在AndroidManifest.xml中设置即可 只需要在启动的activity种添加如下属性即可 <intent-filter><action android:name"android.intent.action.MAIN" /><category android:name&qu…
阅读更多...
苹果推出新型开源AI图像编辑模型“MGIE”；可汗学院辅助学习的GPT,Prompt 质量非常高

苹果推出新型开源AI图像编辑模型“MGIE”；可汗学院辅助学习的GPT,Prompt 质量非常高

&#x1f989; AI新闻 &#x1f680; 苹果推出新型开源AI图像编辑模型“MGIE” 摘要&#xff1a;苹果公司最近发布了一个名为“MGIE”的开源人工智能模型&#xff0c;旨在通过自然语言指令对图片进行编辑。MGIE&#xff0c;全称MLLM-Guided Image Editing&#xff0c;依赖于多…
阅读更多...
Uniapp（uni-app）学习与快速上手教程

Uniapp（uni-app）学习与快速上手教程

Uniapp&#xff08;uni-app&#xff09;学习与快速上手教程 1. 简介 Uniapp是一个跨平台的前端框架&#xff0c;允许您使用Vue.js语法开发小程序、H5、安卓和iOS应用。下面是快速上手的步骤。 2. 创建项目 2.1 可视化界面创建 1、打开 HBuilderX&#xff0c;这是一款专为uni…
阅读更多...
【Linux】进程学习（一）：基本认识

【Linux】进程学习（一）：基本认识

目录 1.基本概念2.初步理解3.描述进程-PCB3.1task_struct-PCB的一种3.2task_ struct内容分类 4.组织进程5.查看进程5.1通过ps指令查看5.2通过系统目录查看 6.通过系统调用获取进程的PID和PPID7.通过系统调用创建进程-fork初识 1.基本概念 课本概念&#xff1a;程序的一个执行实…
阅读更多...
鸿蒙开发-UI-图形-图片

鸿蒙开发-UI-图形-图片

鸿蒙开发-UI-组件 鸿蒙开发-UI-组件2 鸿蒙开发-UI-组件3 鸿蒙开发-UI-气泡/菜单 鸿蒙开发-UI-页面路由 鸿蒙开发-UI-组件导航-Navigation 鸿蒙开发-UI-组件导航-Tabs 文章目录 一、基本概念 二、图片资源加载 1. 存档图类型数据源 2.多媒体像素图 三、显示矢量图 四、图片…
阅读更多...
有哪些方法可以配置并发服务器？

有哪些方法可以配置并发服务器？

通过合理配置并发服务器&#xff0c;可以提高服务器的处理能力和响应速度&#xff0c;从而更好地满足用户需求。本文将介绍一些常见的并发服务器配置方法&#xff0c;以帮助您更好地实现服务器的高效运行。 一、选择合适的操作系统 操作系统的选择是并发服务器配置的重要环节…
阅读更多...
【XR806开发板试用】轻松连上华为云实现物联网

【XR806开发板试用】轻松连上华为云实现物联网

本文为极术社区XR806试用活动文章。 一.开始 偶然的机会在网上看到了鸿蒙开发板的试用,作为一个"老鸿蒙"岂能放弃这个机会,报名之后不出意料地得到了使用名额,在此感谢极术社区. 收到开发板之后其实还有点失望了,就那么一个小小的核心板,其他啥也没有,连一根数据线…
阅读更多...
【MySQL】：深入理解并掌握DML和DCL

【MySQL】：深入理解并掌握DML和DCL

&#x1f3a5; 屿小夏 &#xff1a; 个人主页 &#x1f525;个人专栏 &#xff1a; MySQL从入门到进阶 &#x1f304; 莫道桑榆晚&#xff0c;为霞尚满天&#xff01; 文章目录 &#x1f4d1;前言一. DML1.1 添加数据1.2 修改数据1.3 删除数据 二. DCL2.1 管理用户2.2 权限控制…
阅读更多...
3分钟部署完成Docker Registry及可视化管理工具Docker-UI

3分钟部署完成Docker Registry及可视化管理工具Docker-UI

安装docker-registry 由于镜像文件会非常占用空间&#xff0c;因此需要选择一个磁盘充裕的位置来存放镜像数据。 这里设置为&#xff1a;-v /data/registry:/var/lib/registry&#xff0c;其中/data/registry是宿主机存放数据的位置。 docker run -d -p 5000:5000 --restart…
阅读更多...
【Linux】vim的基本操作与配置（下）

【Linux】vim的基本操作与配置（下）

Hello everybody!今天我们继续讲解vim的操作与配置&#xff0c;希望大家在看过这篇文章与上篇文章后都能够轻松上手vim! 1.补充 在上一篇文章中我们说过了&#xff0c;在底行模式下set nu可以显示行号。今天补充一条&#xff1a;set nonu可以取消行号。这两条命令大家看看就可…
阅读更多...
第62讲商品搜索动态实现以及性能优化

第62讲商品搜索动态实现以及性能优化

商品搜索后端动态获取数据 后端动态获取数据&#xff1a; /*** 商品搜索* param q* return*/GetMapping("/search")public R search(String q){List<Product> productList productService.list(new QueryWrapper<Product>().like("name", q)…
阅读更多...
林浩然与杨凌芸的Java奇遇记：Lambda表达式大冒险

林浩然与杨凌芸的Java奇遇记：Lambda表达式大冒险

林浩然与杨凌芸的Java奇遇记&#xff1a;Lambda表达式大冒险 Lin Haoran and Yang Lingyun’s Java Adventure: The Grand Expedition of Lambda Expressions 在Java编程世界的一隅&#xff0c;住着一对编程界的“才子佳人”&#xff0c;男主角名叫林浩然&#xff0c;女主角唤作…
阅读更多...
最新文章

Copyright @ 2022~2023