python 汉字判断

python 汉字判断 [题目二]判断是否为汉字，改写程序，在编辑框里输入一个字符，判断是否是汉字。 完整代码在我的主页资源中可以找到

单字节的字符一般在0127之间，而双字节的汉字一般在128255之间。
拓展举例：（也可以用正则表达式来实现判断）+修改错误；用正则表达式判别电话号码等；
正则表达式：http://www.360doc.com/content/12/0225/13/19147_189500941.shtml
http://www.cnblogs.com/minlecun/archive/2011/12/06/2277399.html
当然，下面的代码是有问题的：
比如输入：i我是汉字，或者我是1个汉字，答案都是错的

ui部分

from PyQt5 import QtCore, QtGui, QtWidgets

class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(286, 567)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.formLayout = QtWidgets.QFormLayout(self.centralwidget)
        self.formLayout.setObjectName("formLayout")
        self.verticalLayout = QtWidgets.QVBoxLayout()
        self.verticalLayout.setObjectName("verticalLayout")
        self.label_2 = QtWidgets.QLabel(self.centralwidget)
        font = QtGui.QFont()
        font.setFamily("楷体")
        font.setPointSize(16)
        self.label_2.setFont(font)
        self.label_2.setObjectName("label_2")
        self.verticalLayout.addWidget(self.label_2)
        self.textEdit = QtWidgets.QTextEdit(self.centralwidget)
        self.textEdit.setObjectName("textEdit")
        self.verticalLayout.addWidget(self.textEdit)
        self.label = QtWidgets.QLabel(self.centralwidget)
        font = QtGui.QFont()
        font.setFamily("楷体")
        font.setPointSize(16)
        self.label.setFont(font)
        self.label.setObjectName("label")
        self.verticalLayout.addWidget(self.label)
        self.lineEdit = QtWidgets.QLineEdit(self.centralwidget)
        self.lineEdit.setObjectName("lineEdit")
        self.verticalLayout.addWidget(self.lineEdit)
        self.pushButton = QtWidgets.QPushButton(self.centralwidget)
        sizePolicy = QtWidgets.QSizePolicy(QtWidgets.QSizePolicy.Expanding, QtWidgets.QSizePolicy.Fixed)
        sizePolicy.setHorizontalStretch(0)
        sizePolicy.setVerticalStretch(0)
        sizePolicy.setHeightForWidth(self.pushButton.sizePolicy().hasHeightForWidth())
        self.pushButton.setSizePolicy(sizePolicy)
        font = QtGui.QFont()
        font.setFamily("楷体")
        font.setPointSize(16)
        self.pushButton.setFont(font)
        self.pushButton.setObjectName("pushButton")
        self.verticalLayout.addWidget(self.pushButton)
        self.formLayout.setLayout(0, QtWidgets.QFormLayout.LabelRole, self.verticalLayout)
        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtWidgets.QMenuBar(MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 286, 26))
        self.menubar.setObjectName("menubar")
        MainWindow.setMenuBar(self.menubar)
        self.statusbar = QtWidgets.QStatusBar(MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)

        self.retranslateUi(MainWindow)
        QtCore.QmetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
        self.label_2.setText(_translate("MainWindow", "输入"))
        self.label.setText(_translate("MainWindow", "判断"))
        self.pushButton.setText(_translate("MainWindow", "检测"))

逻辑部分

from PyQt5.QtWidgets import *
from judgeHZ_UI import *
import sys

class JDG(QMainWindow, Ui_MainWindow):
    def __init__(self):
        """
               继承布局文件,实现进程控制的功能
               其中text可以用来放检测的字符串
               connecter为按钮监听器
        """
        super(JDG, self).__init__()
        self.setupUi(self)
        self.text=""
        self.connecter()
        self.show()

    def is_Chinese(self,word):
        """
        :param word: 输入字符串进行判断
        :return: 返回结果为True or False
        """
        for ch in word:
            if not 'u4e00' <= ch <= 'u9fff':
                return False
        return True

    def connecter(self):
        self.pushButton.clicked.connect(self._pushButton)

    def _pushButton(self):
        """
        点击后按钮的触发事件
        """
        self.text=str(self.textEdit.toPlainText())
        if self.is_Chinese(self.text):
            self.lineEdit.setText(str("输入的全是汉字"))
        else:
            self.lineEdit.setText(str("输入的包含其他字符"))


def main():
    app = QApplication(sys.argv)
    w = JDG()
    w.show()
    sys.exit(app.exec_())

main()