头文件

#include <QtConcurrent/QtConcurrentRun>

表达式方式

QtConcurrent::run([=]()
{
    // 需要执行的代码
});

执行完触发槽函数

#include <QFutureWatcher>
#include <QtConcurrent/QtConcurrentRun>

QFutureWatcher<void> *pwatcher = new QFutureWatcher<void>;
connect(pwatcher, &QFutureWatcher<void>::finished, this, [=]()
{
    // 执行完后触发该槽函数
});

QFuture<void> future = QtConcurrent::run([=]()
{
    // 需要执行的代码
});

pwatcher->setFuture(future);

转自：https://blog.csdn.net/weixin_45118705/article/details/105760727

标签：异步,执行,run,qt,代码,pwatcher,include,QFutureWatcher,QtConcurrent
来源： https://www.cnblogs.com/qianxiaoPro/p/15729328.html