Python 在QtableWidget中显示数据库中的数据
我有这个代码gui QtableWidgetPython 在QtableWidget中显示数据库中的数据,python,postgresql,qtablewidget,Python,Postgresql,Qtablewidget,我有这个代码gui QtableWidget from PyQt4.QtCore import * from PyQt4.QtGui import * import sys data = {'col1':['1','2','3'], 'col2':['4','5','6'], 'col3':['7','8','9']} class MyTable(QTableWidget): def __init__(self, data, *args): QTableWidget.__init__
from PyQt4.QtCore import *
from PyQt4.QtGui import *
import sys
data = {'col1':['1','2','3'], 'col2':['4','5','6'], 'col3':['7','8','9']}
class MyTable(QTableWidget):
def __init__(self, data, *args):
QTableWidget.__init__(self, *args)
self.data = data
self.setmydata()
self.resizeColumnsToContents()
self.resizeRowsToContents()
def setmydata(self):
horHeaders = []
for n, key in enumerate(sorted(self.data.keys())):
horHeaders.append(key)
print key
for m, item in enumerate(self.data[key]):
newitem = QTableWidgetItem(item)
self.setItem(m, n, newitem)
self.setHorizontalHeaderLabels(horHeaders)
def main(args):
app = QApplication(args)
table = MyTable(data, 5, 3)
table.show()
sys.exit(app.exec_())
if __name__=="__main__":
main(sys.argv)
谁展示这个
我有这个密码
import psycopg2
conn = psycopg2.connect(database="sammy", user="postgres", password="a", host="localhost", port="5432")
print "Opened database successfully"
cur = conn.cursor()
cur.execute("SELECT * from conn")
rows = cur.fetchall()
for row in rows:
print "ID = ", row[0]
print "NAME = ", row[1]
print "password = ", row[2] ,"\n"
谁从数据库中显示此数据
我是python初学者
我想在QtableWidget中显示第二个数据
我应该在第1个代码中更改什么以使数据显示或以其他方式显示
非常感谢您[您可以根据SQL结果构建数据字典。只需模仿示例中的列表字典即可
import psycopg2
conn = psycopg2.connect(database="sammy", user="postgres", password="a", host="localhost", port="5432")
print "Opened database successfully"
cur = conn.cursor()
cur.execute("SELECT * from conn")
rows = cur.fetchall()
ID,NAME,password = [],[],[]
for row in rows:
ID = ID + [row[0]]
NAME = NAME + [row[1]]
password = password + [row[2]]
然后修改QTableWidget代码
data={'col1':['1'、'2'、'3']、'col2':['4'、'5'、'6']、'col3':['7'、'8'、'9']}
成为
data={'ID':ID,'NAME':NAME,'password':password}
[您可以根据SQL结果构建数据字典。只需模仿示例中的列表字典即可
import psycopg2
conn = psycopg2.connect(database="sammy", user="postgres", password="a", host="localhost", port="5432")
print "Opened database successfully"
cur = conn.cursor()
cur.execute("SELECT * from conn")
rows = cur.fetchall()
ID,NAME,password = [],[],[]
for row in rows:
ID = ID + [row[0]]
NAME = NAME + [row[1]]
password = password + [row[2]]
然后修改QTableWidget代码
data={'col1':['1'、'2'、'3']、'col2':['4'、'5'、'6']、'col3':['7'、'8'、'9']}
成为
data={'ID':ID,'NAME':NAME,'password':password}