如何读取 QComboBox 数据并将其存储到 mysql 数据库中
How to read QComboBox data and storesit into mysql database
如何从 QComboBox 中获取选定的项目,以及如何在单击按钮时将组合框的选定项目存储到数据库中...
import MySQLdb
import sys
from PyQt4.QtCore import *
from PyQt4.QtGui import *
def win():
db=MySQLdb.connect('localhost','root','Suhel786','radio')
cursor=db.cursor()
app=QApplication(sys.argv)
w=QWidget()
co=QComboBox()
co.addItem("A+")
co.addItem("A-")
b1 = QPushButton("Tap it!")
w.setWindowTitle("Combo")
hbox=QHBoxLayout()
hbox.addWidget(co)
hbox.addWidget(b1)
b1.clicked.connect(b1_action)
w.setLayout(hbox)
w.show()
db.commit()
db.close()
sys.exit(app.exec_())
def b1_action():
print "data is inserted"
win()
你必须将按钮的clicked
信号连接到某个插槽,在这种情况下插槽将是保存方法,在这个函数中我们将通过currentText()
方法获取选定的文本QComboBox
,并将其插入数据库,如下所示:
class Win(QWidget):
def __init__(self, parent=None):
QWidget.__init__(self, parent)
self.db = MySQLdb.connect('localhost','root','Suhel786','radio')
self.cursor = self.db.cursor()
self.db.commit()
self.setLayout(QHBoxLayout())
self.btn = QPushButton("Save", self)
self.combo = QComboBox(self)
self.combo.addItems(["A+", "A-", "AB-"])
self.layout().addWidget(self.btn)
self.layout().addWidget(self.combo)
self.btn.clicked.connect(self.save)
def save(self):
text = self.combo.currentText()
self.cursor.execute("INSERT INTO test (Blood) values('{}')".format(text))
self.db.commit()
if __name__ == '__main__':
app = QApplication(sys.argv)
w = Win()
w.show()
sys.exit(app.exec_())
如何从 QComboBox 中获取选定的项目,以及如何在单击按钮时将组合框的选定项目存储到数据库中...
import MySQLdb
import sys
from PyQt4.QtCore import *
from PyQt4.QtGui import *
def win():
db=MySQLdb.connect('localhost','root','Suhel786','radio')
cursor=db.cursor()
app=QApplication(sys.argv)
w=QWidget()
co=QComboBox()
co.addItem("A+")
co.addItem("A-")
b1 = QPushButton("Tap it!")
w.setWindowTitle("Combo")
hbox=QHBoxLayout()
hbox.addWidget(co)
hbox.addWidget(b1)
b1.clicked.connect(b1_action)
w.setLayout(hbox)
w.show()
db.commit()
db.close()
sys.exit(app.exec_())
def b1_action():
print "data is inserted"
win()
你必须将按钮的clicked
信号连接到某个插槽,在这种情况下插槽将是保存方法,在这个函数中我们将通过currentText()
方法获取选定的文本QComboBox
,并将其插入数据库,如下所示:
class Win(QWidget):
def __init__(self, parent=None):
QWidget.__init__(self, parent)
self.db = MySQLdb.connect('localhost','root','Suhel786','radio')
self.cursor = self.db.cursor()
self.db.commit()
self.setLayout(QHBoxLayout())
self.btn = QPushButton("Save", self)
self.combo = QComboBox(self)
self.combo.addItems(["A+", "A-", "AB-"])
self.layout().addWidget(self.btn)
self.layout().addWidget(self.combo)
self.btn.clicked.connect(self.save)
def save(self):
text = self.combo.currentText()
self.cursor.execute("INSERT INTO test (Blood) values('{}')".format(text))
self.db.commit()
if __name__ == '__main__':
app = QApplication(sys.argv)
w = Win()
w.show()
sys.exit(app.exec_())