-- coding=utf8 --

import sys
reload(sys)
sys.setdefaultencoding('utf-8')
from PyQt4 import QtCore, QtGui, uic
import requests
import re
from PyQt4.QtCore import * 
from PyQt4.QtGui import *


tc_api='http://image.baidu.com/pictureup/uploadshitu'
files={
    'image':''
    }
data={'pos':'upload'
    ,'uptype':'upload_pc'
    ,'fm':'index'}

def upload_file(filepath):
    try:
        img=open(filepath,'rb')
    except Exception,e:
        print e
        sys.exit(0)
    files['image']=img
    c=requests.post(tc_api,files=files,data=data)
    img_url=re.findall('queryImageUrl=(.*?)&querySign',c.url)[0]
    img1=re.sub('%3A',':',img_url)
    img2=re.sub('%2F','/',img1)
    return img2

qtCreatorFile = "baidu_ui.ui" # Enter file here.

Ui_MainWindow, QtBaseClass = uic.loadUiType(qtCreatorFile)

class MyApp(QtGui.QMainWindow, Ui_MainWindow):
    def __init__(self):
        QtGui.QMainWindow.__init__(self)
        Ui_MainWindow.__init__(self)
        self.setupUi(self)
        self.thread=Worker()
        self.fileSelect.clicked.connect(self.selectFile)
        self.thread.sinOut2.connect(self.show_result)

    def selectFile(self):
        filepath=self.to_utf8(QtGui.QFileDialog.getOpenFileName(self,u'选择图片','',r'Image Files(*.png *.jpg *.bmp *.jpeg *.gif)'))
        self.thread.getPath((filepath,))
        self.fileSelect.setEnabled(False)


    def show_result(self,result):
        img,isTrue=result[0],result[1]
        self.markdown_show.setText('![]('+img+')')
        self.realurl.setText(img)
        self.fileSelect.setEnabled(isTrue)

    def to_utf8(self,input):
        return unicode(input,'utf8','ignore')


class Worker(QtCore.QThread): 
    sinOut2 = pyqtSignal(tuple) 

    def __init__(self,parent=None): 
        super(Worker,self).__init__(parent) 

    def getPath(self,filepath):
        self.filepath=filepath[0]
        print self.filepath

    def run(self): 
        while 1:
            print 'start'
            img=upload_file(self.filepath)
            print img
            self.sinOut2.emit((img,True))


if __name__ == "__main__":
    app = QtGui.QApplication(sys.argv)
    window = MyApp()
    window.show()
    sys.exit(app.exec_())

本质是用 QT 写个窗口，然后选择图片，然后上传至百度识图，返回图片链接，然后把图片链接放在 QLineEdit 。

现在问题是： MyApp 可以将 filepath 传到 worker ，但是 worker 好像没有执行 run()，也就没有执行 upload_file()函数。。

没看出什么问题（修为不够）,求各位大神看看