QList<T>
1.T的类型为非指针,这时候直接调用clear()方法就可以释放
#include <QtCore/QCoreApplication>
#include <QList>
#include <QString>
int main(int argc, char *argv[])
{
QCoreApplication a(argc, argv);
typedef struct _test
{
int id;
QString name;
QString sex;
int age;
}Por_test;
QList<Por_test > slist;
for (int i=0;i<100000;i++)
{
Por_test s ;
s->id = 1;
s->name = QString("hello World!");
s->sex = QString("男?");
s->age = 20 ;
slist.append(s);
}
qDeleteAll(slist);
slist.clear();
return a.exec(); }
2.T的类型为指针的情况,这时候直接调用clear()方法将不能释放,在clear()之前调用qDeleteAll();
- #include <QtCore/QCoreApplication>
- #include <QList>
- #include <QString>
- int main(int argc, char *argv[])
- {
- QCoreApplication a(argc, argv);
- typedef struct _test
- {
- int id;
- QString name;
- QString sex;
- int age;
- }Por_test;
- QList<Por_test *> slist;
- for (int i=0;i<100000;i++)
- {
- Por_test *s = new Por_test();
- s->id = 1;
- s->name = QString("hello World!");
- s->sex = QString("男?");
- s->age = 20 ;
- slist.append(s);
- }
- qDeleteAll(slist);
- slist.clear();
- return a.exec();
- }