Add new file

Qlist4

+#include <QCoreApplication>
+#include <QDebug>
+int main(int argc, char *argv[])
+{
+    QCoreApplication a(argc, argv);
+    QList<int> list;
+    for(int j=0;j<10;j++)
+        list.insert(list.end(),j);
+    QList<int>::iterator i;
+    for(i=list.begin();i!=list.end();++i)
+    {
+        qDebug()<<(*i);
+        *i=(*i)*10;
+    }
+    QList<int>::const_iterator ci;
+    for(ci=list.constBegin();ci!=list.constEnd();++ci)
+        qDebug()<<*ci;
+    return a.exec();
+}
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