an error is reported when using SQLite.swift to use try db.run on existing database tables (table.addColumn (title)) adds a title column. the code is as follows: create a table private func creatTable(filePath: String) { do { db = t...
what is the situation? I use multithreaded Task to grab the data. How can I save the database after capturing the data? The database is sqlite. 1. At first, I want to store the database directly in task, but in the case of multithreading, there will be...
before pull, there is a ros:kinetic-robot image, which is based on ubuntu, and then hang up the previous ALSA playback wav code to execute . docker run -it --device dev snd: dev snd -v media dyan project projects voice : data voice ros:kinet...
this is the function function CompareDate(d1) { return ((new Date(d1))) > (new Date()); } Vue.prototype.checkValidity = function(type){ let result API.validity(function (res) { if(res.code == 1){ if(type == "z"...
such a table wants to appear a QR code under each button Wechat QR code . Press the current comment div when calling the plug-in method, all the QR codes go below the first button. How to implement the next button? <el-table-column label="&...
blocking often occurs when requesting https addresses using AsyncTcpConnection. The figure shows that it is blocked on top of 41. I d like to trouble you for guidance. ...
after the side slip deletion is introduced into the layout of item, the button that slips out can be deleted normally, but the setOnItemClickListener () method of adapter is invalid. How to solve this problem if you click item and do not respond? <?...