#include?“dialog.h“
#include?“ui_dialog.h“
const?static?double?PI=3.1416;
Dialog::Dialog（QWidget?*parent）?:
????QDialog（parent）
????ui（new?Ui::Dialog）
{
????ui->setupUi（this）;
}

Dialog::~Dialog（）
{
????delete?ui;
}

void?Dialog::on_countBtn_clicked（）
{
????bool?ok;
????QString?tempStr;
????QString?valueStr=ui->radiusLineEdit->text（）;
????int?valueInt=valueStr.toInt（&ok）;
????double?area=valueInt*valueInt*PI;//計算圓面積
????ui->areaLabel_2->setText（tempStr.setNum（area））;
}

void?Dialog::on_radiusLineEdit_textChanged（const?QString?&arg1）
{
????bool?ok;
????QString?tempStr;
????QString?valueStr=ui->radiusLineEdit->text（）;
????int?valueInt=valueStr.toInt（&ok）;
????double?area=valueInt*valueInt*PI;//計算圓面積
????ui->areaLabel_2->setText（tempStr.setNum（area））;
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2015-06-11?08:33??CH1\
?????目錄???????????0??2015-06-11?08:33??CH10\
?????目錄???????????0??2015-06-11?08:33??CH10\CH1001\
?????目錄???????????0??2015-06-11?08:33??CH10\CH1001\NetworkInformation\
?????文件?????????203??2015-04-14?12:25??CH10\CH1001\NetworkInformation\main.cpp
?????文件????????2075??2015-04-14?12:25??CH10\CH1001\NetworkInformation\networkinformation.cpp
?????文件?????????698??2015-04-14?12:25??CH10\CH1001\NetworkInformation\networkinformation.h
?????文件?????????397??2015-04-14?12:25??CH10\CH1001\NetworkInformation\NetworkInformation.pro
?????文件???????18535??2015-04-14?12:24??CH10\CH1001\NetworkInformation\NetworkInformation.pro.user
?????文件???????17788??2015-04-14?12:24??CH10\CH1001\NetworkInformation\NetworkInformation.pro.user.2.7pre1
?????目錄???????????0??2015-06-11?08:33??CH10\CH1002\
?????目錄???????????0??2015-06-11?08:33??CH10\CH1002\UdpServer\
?????文件?????????185??2015-04-14?12:25??CH10\CH1002\UdpServer\main.cpp
?????文件????????1355??2015-04-14?12:25??CH10\CH1002\UdpServer\udpserver.cpp
?????文件?????????640??2015-04-14?12:25??CH10\CH1002\UdpServer\udpserver.h
?????文件?????????370??2015-04-14?12:25??CH10\CH1002\UdpServer\UdpServer.pro
?????文件???????18481??2015-04-14?12:25??CH10\CH1002\UdpServer\UdpServer.pro.user
?????文件???????17734??2015-04-14?12:25??CH10\CH1002\UdpServer\UdpServer.pro.user.2.7pre1
?????目錄???????????0??2015-06-11?08:33??CH10\CH1003\
?????目錄???????????0??2015-06-11?08:33??CH10\CH1003\UdpClient\
?????文件?????????185??2015-04-14?12:25??CH10\CH1003\UdpClient\main.cpp
?????文件????????1241??2015-04-14?12:25??CH10\CH1003\UdpClient\udpclient.cpp
?????文件?????????548??2015-04-14?12:25??CH10\CH1003\UdpClient\udpclient.h
?????文件?????????370??2015-04-14?12:25??CH10\CH1003\UdpClient\UdpClient.pro
?????文件???????18481??2015-04-14?12:25??CH10\CH1003\UdpClient\UdpClient.pro.user
?????文件???????17734??2015-04-14?12:25??CH10\CH1003\UdpClient\UdpClient.pro.user.2.7pre1
?????目錄???????????0??2015-06-11?08:33??CH10\CH1004\
?????目錄???????????0??2015-06-11?08:33??CH10\CH1004\TcpServer\
?????文件?????????185??2015-04-14?12:25??CH10\CH1004\TcpServer\main.cpp
?????文件????????1216??2015-04-14?12:25??CH10\CH1004\TcpServer\server.cpp
?????文件?????????489??2015-04-14?12:25??CH10\CH1004\TcpServer\server.h
............此處省略1680個文件信息