programmer group

http network request sent by qt

4. Send http request 4.1 copy mynetworkobject.cpp and mynetworkobject.h to your project (ps: these two documents were found on the Internet, and I have modified them) 4.2 add "mynetworkobject.h" to the header file // I added it in mainwindow.h (no special explanation below, take this demo as an example) #include "mynetworkobject.h" 4.3 define a networkObj variable in mainwindow.h //In public MyNetworkObject...

programmer group

python learning note 1

According to a THU God who knows how to answer with high votehttp://nbviewer.jupyter.org/github/lijin-THU/notes-python/tree/master/ Just sort out something I don't think I'm familiar with For acmer or some children's shoes familiar with C + +, I think there should be some references I think python is a future language. One day, it will replace C + +, java To put it bluntly, it's more simplified Just like the relationship between...

programmer group

MySQL benchmark tool

1, Benchmarking Benchmark is a kind of stress test for system design. Benchmarking is simplified stress testing. 1.1 common indicators TPS QPS response time Concurrency 1.2 script for data collection and analysis The shell script gather.sh for collecting data #!/bin/sh INTERVAL=5 PREFIX=$INTERVAL-sec-status RUNFILE=/home/benchmarks/running mysql -e 'SHOW GLOBAL VARIABLES' >> mysql-variables while test -e $RUNFILE; do ...