我在Qt工作，我不明白如何链接QPushButton和QHBoxLayout accountlayout;
QLabel accountlabel("AccountServer");
QLineEdit accountlineedit;
QPushButton accountbuttonselect("Select");
QPushButton accountbuttonlaunch("Launch");
QPushButton accountbuttonstop("Stop");
QString accountfile;
accountlayout.addWidget(&accountlabel);
accountlayout.addWidget(&accountlineedit);
accountlayout.addWidget(&accountbuttonselect);
accountlayout.addWidget(&accountbuttonlaunch);
accountlayout.addWidget(&accountbuttonstop);
QObject::connect(&accountbuttonselect,
&QPushButton::clicked,
[&window, &accountfile] {
accountfile = QFileDialog::getOpenFileName(
window,
QObject::tr("Sélectionner un exécutable ..."),
"C:/", QObject::tr("Exécutable (*.exe)"));
});
layout.addLayout(&accountlayout);
。我为QFileDialog：
QLineEdit我打开 var AWS = require('aws-sdk');
var db = new AWS.DynamoDB();
exports.handler = function(event, context) {
var params = {
TableName: "hexagon2",
ProjectionExpression: "price",
FilterExpression: "price between :lower and :higher",
ExpressionAttributeValues: {
":lower": {"N": "1"},
":higher": {"N": "13"}
}
};
db.scan(params, function(err, data) {
if (err) {
console.log(err); // an error occurred
}
else {
console.log(data.Item); // successful response
context.done(null,{"Result": "Operation succeeded."});
}
});
};
搜索可执行文件，我想设置START RequestId: f770c78b-93a1-11e6-b5f6-e5c31cef8b2d Version: $LATEST
2016-10-16T13:10:54.299Z f770c78b-93a1-11e6-b5f6-e5c31cef8b2d undefined
END RequestId: f770c78b-93a1-11e6-b5f6-e5c31cef8b2d
REPORT RequestId: f770c78b-93a1-11e6-b5f6-e5c31cef8b2d Duration: 912.58 ms Billed Duration: 1000 ms Memory Size: 128 MB Max Memory Used: 24 MB
以显示指定的目录。我怎么能这样做？