• Oracle 11g installation


    There are two ways to install Oracle 11g: basic installation and advanced installation. The hardware requirements of the two methods are also different. Oracle 11g software is very large, and the hardware requirements are very high. At present, it is only about the installation in Windows environment. After the installation in Linux environment, the following […]

  • Learning notes of classic example of C ා concurrent programming-3.1 parallel processing of data


    problem There is a batch of data that requires the same operation on each element. This operation is computationally intensive and takes a certain amount of time. Solution Common operations can be roughly divided into calculation intensive operations and IO intensive operations. Computing intensive operations mainly depend on CPU computing, so parallel operations that can […]

  • Wechat applet and user interaction


    Wechat applet and user interaction I. display message prompt box Wx. Showtoast ({property name: property value}) Customize a prompt box, which will be automatically closed when the time is up wx.showToast({ Title: “success”, // required Icon: ‘success’, // icon only supports’ success’ and’ loading ‘ Image: ‘/ images / tan. PNG’, // the local path […]

  • Summary of four click response methods of button


    Button is used a lot. After sorting out its event handling methods, I found that there are many implementation methods. I prefer the second one. Which one do you use most? Achievement 1: Copy code The code is as follows: Button bt_Demo = (Button)findViewById(R.id.bt_Demo); bt_Demo.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) {//Respond to clicked […]

  • Download and installation of Android SDK


    I. Introduction to Android SDK The Android SDK (software development kit) is used by software development engineers to build a collection of development tools for application software for specific software packages, software frameworks, hardware platforms, operating systems, etc. It provides Android API library and development tools to build, test and debug applications. In short, the […]

  • Introduction to the input box EditText of Android Development


    This article mainly introduces the design of the input box EditText of Android layout in detail, which has certain reference value. For interested friends, please refer to it Now let’s briefly introduce the technical points:1. How to use fillet input box and button background2. How to realize the vertical line behind “mobile number” and “password”3. […]

  • Front end development HTML5 – form label


    Form brief introduction Form form is mainly used for data interaction between users and web applications. It allows users to send data to web applications, and web pages can also intercept the sending of data for their own use. Form is usually composed of one or more form elements. These form elements are single line […]

  • [transfer] 2018 Apple Developer account application process


    Original: https://www.jianshu.com/p/b5a484cecd7c This article mainly describes the application process of Apple’s developer account in 2018. Compared with 2017, the application process has some changes. I hope you can avoid some detours through this article and successfully complete the application of developer account. Some problems that may occur in the new process and changes of some […]

  • Add WordPress article sharing button manually (without plug-in) implementation steps


    Add some sharing buttons to a good article to share it with some famous websites, which is good for the promotion of websites. There are many ways to add sharing buttons to the site. You can use the jithis tool to log in to jithis.com and set your preferred way to get the corresponding code. […]

  • CMD execute dcpromo error: Active Directory Domain Services Setup Wizard is not supported on this SKU, Windows Server 2008 R2 enterprise configures ad (active directory) domain controller


    Today, to install an ad domain controller, run dcpromo with the following results:The Active Directory Domain Services Setup Wizard is not supported on this SKU. I passed it directly before. What’s the matter this time? It’s been done for most of the day.     Main cause:My version of windows 2008 R2 is web. The ad role […]

  • Android Development Notes


    1. Use the alertdialog.builder dialog box to customize the view and set it through setview AlertDialog.Builder dlgAlert; dlgAlert = new AlertDialog.Builder(this); LayoutInflater inflater = getLayoutInflater(); Dlgealert.settitle (“user agreement”); //dlgAlert.setMessage(R.string.agreement); View checkView=inflater.inflate(R.layout.agreedialogview,null); dlgAlert.setView(checkView); CheckBox agreeCheck=(CheckBox)checkView.findViewById(R.id.checkBox_agree);; Dlgealert.setpositivebutton (“OK”, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int id) { // if this button is clicked, close current […]

  • Uni app custom navigation bar button


    Recently, I have been learning the development of uni app. As the development of uni app is based on the technology of vue.js, as long as you are familiar with Vue, you will be able to start it soon. It is found in the development that the native navigation bar of uni app can also […]