button贴图，点击事件带参数和不带参数连接

#-*- coding:utf-8 -*-
#pyqt4 button 贴图，button信号槽连接
###button 贴图稍微麻烦一点儿，我们首先需要先建立一个文件icon.qrc，在dos窗口下cd到当前目录下，敲入下面的命令，生成icon_rc.py之后就可以了
#pyrcc4 -o icon_rc.py icon.qrc

from PyQt4.QtCore import *
from PyQt4.QtGui import *
import icon_rc
import sys

try:
_fromUtf8 = QString.fromUtf8
except AttributeError:
def _fromUtf8(s):
return s
class MyWindow(QDialog,QWidget):
def __init__(self,parent = None):
super(MyWindow,self).__init__(parent)
self.resize(400,400)
self.mainlayout = QGridLayout(self)
self.mybutton = QPushButton()
icon = QIcon()
icon.addPixmap(QPixmap(_fromUtf8("E+.png")), QIcon.Normal, QIcon.Off)
self.mybutton.setIcon(icon)
self.mainlayout.addWidget(self.mybutton)
self.mybutton.setMinimumHeight(80) ####设置一下button的最小高度
self.mybutton.setIconSize(QSize(60,60)) ######设置icon的大小
self.mybutton.clicked.connect(lambda:self.clickButton("hello world"))
self.mybutton.clicked.connect(self.clickButtonwithoutArg)

def clickButton(self,str_type):
print u"有参数信号槽连接"
print str_type

def clickButtonwithoutArg(self):
print u"无参数信号槽连接"
app=QApplication(sys.argv)
window=MyWindow()
window.show()
app.exec_()

###icon.qrc

<!DOCTYPE RCC><RCC version="1.0"><qresource><file>E+.png</file></qresource></RCC>