def __openByStream(self, fileName): ##用QTextStream打开文件
fileDevice = QFile(fileName)
if not fileDevice.exists(): #判断文件是否存在
return False
if not fileDevice.open(QIODevice.ReadOnly | QIODevice.Text):
return False
try:
fileStream = QTextStream(fileDevice)
fileStream.setAutoDetectUnicode(True) #自动检测Unicode
fileStream.setCodec("utf-8") #必须设置编码,否则不能正常显示汉字
# 一次性全部读出
## text=fileStream.readAll() #读取出来就是str
## self.ui.textEdit.setPlainText(text)
#逐行读取方式
self.ui.textEdit.clear()
while not fileStream.atEnd():
lineStr = fileStream.readLine() #读取文件的一行,读取出来就是str
self.ui.textEdit.appendPlainText(lineStr) #添加到文本框显示
finally:
fileDevice.close() #关闭文件
return True
def updateTextEdit(self):
mib = self.encodingComboBox.itemData(self.encodingComboBox.currentIndex())
codec = QTextCodec.codecForMib(mib)
data = QTextStream(self.encodedData)
data.setAutoDetectUnicode(False)
data.setCodec(codec)
self.decodedStr = data.readAll()
self.textEdit.setPlainText(self.decodedStr)
def do_error(self):
os = QTextStream(self)
os.setAutoDetectUnicode(True)
os << "HTTP/1.1 400 Bad Request\r\n" \
+ "Content-Type: text/plain; charset=\"utf-8\"\r\n" \
+ "\r\n" \
+ 'The request could not be understood by the\n' \
'server due to malformed syntax.\n'
self.close()
def do_head(self):
os = QTextStream(self)
os.setAutoDetectUnicode(True)
os << 'HTTP/1.1 200 OK\r\n' \
+ 'Content-Type: text/plain; charset="utf-8"\r\n' \
+ 'Server: HTTP skeleton server\r\n' \
+ '\r\n'
self.close()
def __writeTxt(self, file_name):
"""
:param file_name: str,txt文件名
:return: 无
"""
file_device = QFile(file_name)
if not file_device.open(QIODevice.WriteOnly | QIODevice.Text):
return False
try:
file_stream = QTextStream(file_device)
file_stream.setAutoDetectUnicode(True) # 自动检测Unicode
file_stream.setCodec('utf-8')
self.__exportTable(file_stream)
finally:
file_device.close()
return True
def __saveByStream(self, fileName): ##用 QTextStream 保存文件
fileDevice = QFile(fileName)
if not fileDevice.open(QIODevice.WriteOnly | QIODevice.Text):
return False
try:
fileStream = QTextStream(fileDevice) #用文本流读取文件
fileStream.setAutoDetectUnicode(True) #自动检测Unicode
fileStream.setCodec("utf-8") #必须设置编码,否则不能正常显示汉字
text = self.ui.textEdit.toPlainText() #返回是str类型
fileStream << text #使用流操作符
## fileStream<<"\n***************在尾部添加的第1行"
finally:
fileDevice.close()
return True
def __saveByStream(self, fileName):
fileDevice = QFile(fileName)
if not fileDevice.exists():
return False
if not fileDevice.open(QIODevice.ReadOnly | QIODevice.Text):
return False
try:
fileStream = QTextStream(fileDevice)
fileStream.setAutoDetectUnicode(True)
fileStream.setCodec("utf-8")
text = self.ui.textEdit.toPlainText()
fileStream << text
finally:
fileDevice.close()
return True
def __readTxt(self, file_name: str) -> bool:
"""
:param file_name: str,txt文件名
:return: bool,是否成功
"""
file_device = QFile(file_name)
if not file_device.exists():
return False
if not file_device.open(QIODevice.ReadOnly | QIODevice.Text):
return False
try:
file_stream = QTextStream(file_device)
file_stream.setAutoDetectUnicode(True) # 自动检测unicode
file_stream.setCodec('utf-8') # 不然不能读取汉字
while not file_stream.atEnd():
line_str = file_stream.readLine() # 一行行读，读出来就是str
self.__import2Table(line_str)
finally:
file_device.close()
return True
def __openByStream(self, fileName):
fileDevice = QFile(fileName)
if not fileDevice.exists():
return False
if not fileDevice.open(QIODevice.ReadOnly | QIODevice.Text):
return False
try:
fileStream = QTextStream(fileDevice)
fileStream.setAutoDetectUnicode(True)
fileStream.setCodec("utf-8")
self.ui.textEdit.clear()
while not fileStream.atEnd():
lineStr = fileStream.readLine()
self.ui.textEdit.appendPlainText(lineStr)
finally:
fileDevice.close()
return True
