diff --git a/Modem/Modem.cpp b/Modem/Modem.cpp
index 4980ba8..dc28725 100644
--- a/Modem/Modem.cpp
+++ b/Modem/Modem.cpp
@@ -41,7 +41,7 @@ void Modem::showTransfer(int total, int remain, float speed)
     ui->progress->setValue((int)p);
     ui->progress->setFormat(fmt);
 
-    fmt = fmt.sprintf("速度:%.2fKB/S 剩余:%d/%dKB",
+    fmt = fmt.asprintf("速度:%.2fKB/S 剩余:%d/%dKB",
                       speed/1024, remain/1024, total/1024);
     showStatus(fmt);
 }
diff --git a/NewSession/NewSession.cpp b/NewSession/NewSession.cpp
index f406bff..72fffcf 100644
--- a/NewSession/NewSession.cpp
+++ b/NewSession/NewSession.cpp
@@ -50,7 +50,7 @@ void NewSession::makeID(QString &id)
     QDateTime dt;
 
     dt = dt.currentDateTime();
-    id = id.sprintf("%d", dt.toTime_t());
+    id = id.asprintf("%d", dt.toTime_t());
 }
 
 void NewSession::on_sesType_currentItemChanged(QListWidgetItem *current, QListWidgetItem *previous)
diff --git a/QTermWidget/QTermWidget.cpp b/QTermWidget/QTermWidget.cpp
index 02bd97b..69781c7 100644
--- a/QTermWidget/QTermWidget.cpp
+++ b/QTermWidget/QTermWidget.cpp
@@ -472,7 +472,7 @@ void QTermWidget::debug(const QByteArray &data)
     for (int i = 0; i < data.size(); i ++)
     {
         QString tmp;
-        str += tmp.sprintf("0x%02X, ", (unsigned char)(data.data()[i]));
+        str += tmp.asprintf("0x%02X, ", (unsigned char)(data.data()[i]));
     }
 
     qDebug(str.toStdString().data());
diff --git a/SendSave/SendSave.cpp b/SendSave/SendSave.cpp
index 1767538..d0a3e95 100644
--- a/SendSave/SendSave.cpp
+++ b/SendSave/SendSave.cpp
@@ -121,7 +121,7 @@ void SendSave::on_add_clicked()
     QString endline = "\\n";
     QString value = "test";
 
-    sn.sprintf("%d", ui->tbSave->rowCount() + 1);
+    sn = QString::asprintf("%d", ui->tbSave->rowCount() + 1);
     tableAddRow(sn, type, value, endline);
     worker->dbAddRow(sn, sn, type, value, endline);
 }
@@ -131,7 +131,7 @@ void SendSave::on_tbSave_itemChanged(QTableWidgetItem *item)
     QString sn;
     QString val;
 
-    sn.sprintf("%d", item->row() + 1);
+    sn = QString::asprintf("%d", item->row() + 1);
     val = item->text();
     worker->dbUpdateRow(sn, item->column(), val);