我正在尝试为我正在制作的GUI制作打印按钮。现在，当我单击打印按钮时，它会将所有数据存储到我尝试打印的每个变量的一个单元格中。现在我正在尝试打印时间，转速，扭矩和马力。它将在每个单独的单元格中给我每个，但它不会开始新的行。在此单元格中，格式为：[1,2,3,4,5，...]。括号也在单元格中。我希望将它们分成行，这样GUI的用户就可以将数据用于后期处理。我在这个问题上发现的主要是人们试图将单词放入不同的单元格，我知道字符的行为与数字不同，人们希望这些值在单个单元格中，而不是像我的情况那样。“ / p>
我现在所拥有的是打印按钮将打印带有唯一时间戳的文件。这样，用户可以保留这些数据以便安全保存。
提前谢谢你！
"""
SCSU DYNO GUI PROGRAM
created 11/10/2017
"""
import sys
import time
from time import gmtime, localtime, strftime
import csv
import numpy as np
import warnings
import serial
import serial.tools.list_ports
from PyQt5 import QtCore, QtGui, QtWidgets
from PyQt5.QtCore import QThread,QTimer, pyqtSignal
from PyQt5.QtWidgets import QMessageBox,QWidget, QApplication,QHBoxLayout
from PyQt5.QtGui import QColor
from pyqtgraph.Qt import QtGui, QtCore
import pyqtgraph as pg
import random
from DynoTest1 import Ui_DynoTest1
__author__ = 'Matt Munn'
pg.setConfigOption('background', None)
pg.setConfigOption('foreground', 'k')
class GetData(QThread):
dataChanged = pyqtSignal(float, float, float, float, float, float, float, float)
#Distance = 0.5 #This is dependent on the lever arm.
def __init__(self, parent=None):
QThread.__init__(self, parent)
arduino_ports = [ # automatically searches for an Arduino and selects the port it's on
p.device
for p in serial.tools.list_ports.comports()
if 'Arduino' in p.description
]
if not arduino_ports:
raise IOError("No Arduino found - is it plugged in? If so, restart computer.")
if len(arduino_ports) > 1:
warnings.warn('Multiple Arduinos found - using the first')
self.Arduino = serial.Serial(arduino_ports[0], 9600, timeout=1)
def __del__(self): # part of the standard format of a QThread
self.wait()
def run(self): # also a required QThread function, the working part
self.Arduino.close()
self.Arduino.open()
self.Arduino.flush()
self.Arduino.reset_input_buffer()
start_time = time.time()
Distance = 1 #This is dependent on the lever arm.
Max_RPM = 0
Max_Horsepower = 0
Max_Torque = 0
#This is what does the work to get the data from the arduino and then converts it to the other needed values.
while True:
while self.Arduino.inWaiting() == 0:
pass
try:
data = self.Arduino.readline()
dataarray = data.decode().rstrip().split(',')
self.Arduino.reset_input_buffer()
Force = round(float(dataarray[0]), 3)
RPM = round(float(dataarray[1]), 0)
if Max_RPM < RPM:
Max_RPM = RPM
Torque = round(Force * Distance, 2)
if Max_Torque < Torque:
Max_Torque = Torque
Horsepower = round(Torque * RPM / 5252, 2)
if Max_Horsepower < Horsepower:
Max_Horsepower = Horsepower
Run_Time = round(time.time() - start_time, 1)
print(Force, 'Grams', ",", RPM, 'RPMs', ",", Torque, "ft-lbs", ",", Horsepower, "hp", Run_Time,
"Time Elasped")
self.dataChanged.emit(Force, RPM, Max_RPM, Torque, Max_Torque, Horsepower, Max_Horsepower, Run_Time)
except (KeyboardInterrupt, SystemExit, IndexError, ValueError):
pass
class GUI(QWidget, Ui_DynoTest1):
def __init__(self, parent=None, border = None):
# This is what is used to make the graph.
QWidget.__init__(self, parent)
self.setupUi(self)
self.thread = GetData(self)
self.thread.dataChanged.connect(self.onDataChanged)
self.thread.start()
self.rpm = []
self.torque = []
self.horse_power = []
self.time = []
self.counter = 0
layout = QHBoxLayout()
self.plot = pg.PlotWidget()
layout.addWidget(self.plot)
self.plot.setAttribute(QtCore.Qt.WA_TranslucentBackground, True)
self.graphicsView.setLayout(layout)
self.p1 = self.plot.plotItem
self.p1.setLabels(left='Torque (ft-lbs)', bottom= 'Time (sec)')
self.TorqueCurve = self.p1.plot()
self.TorqueCurve.setPen(pg.mkPen(QColor(0,0,0), width=2.5))
self.p2 = pg.ViewBox()
self.HorsePowerCurve = pg.PlotCurveItem()
self.HorsePowerCurve.setPen(pg.mkPen(QColor(0, 0, 255), width=2.5))
self.p2.addItem(self.HorsePowerCurve)
self.p1.scene().addItem(self.p2)
self.p1.showAxis('right')
self.p1.getAxis('right').setLabel('HorsePower', color='#0000ff')
self.p1.getAxis('right').linkToView(self.p2)
self.p1.vb.sigResized.connect(self.updateViews)
#This is where the buttons will be set up at.
self.pushButton_4.clicked.connect(self.Print_Out)
def Print_Out(self):
#This gives a unique time stamp for each file made.
outputFileName = "DynoData_#.csv"
outputFileName = outputFileName.replace("#", strftime("%Y-%m-%d_%H %M %S", localtime()))
with open(outputFileName, 'w',newline='') as outfile:
outfileWrite = csv.writer(outfile, delimiter=',')
#test = self.torque
#test2 = self.torque , self.rpm
outfileWrite.writerow([self.torque,self.horse_power,self.rpm,self.time])
def updateViews(self):
self.p2.setGeometry(self.p1.vb.sceneBoundingRect())
self.p2.linkedViewChanged(self.p1.vb, self.p2.XAxis)
def onDataChanged(self, Force, RPM, Max_RPM, Torque, Max_Torque, Horsepower, Max_Horsepower, Run_Time):
#These tell the program to display the values to the LCDs
self.lcdNumber.display(Max_RPM)
self.lcdNumber_2.display(Max_Torque)
self.lcdNumber_3.display(Max_Horsepower)
self.lcdNumber_4.display(RPM)
self.lcdNumber_5.display(Torque)
self.lcdNumber_6.display(Horsepower)
self.lcdNumber_7.display(Run_Time)
if self.counter < 50:
self.torque.append(Torque)
self.horse_power.append(Horsepower)
self.time.append(Run_Time)
self.rpm.append(RPM)
else:
self.torque = self.torque[1:] + [Torque]
self.horse_power = self.horse_power[1:] + [HorsePower]
self.time = self.time[1:] + [Run_Time]
self.rpm = self.rpm[1:] + [RPM]
self.HorsePowerCurve.setData(self.time, self.horse_power)
self.TorqueCurve.setData(np.array(self.time), self.torque)
self.updateViews()
#This is part of a standard closing script
if __name__ == '__main__':
import sys
app = QApplication(sys.argv)
Dyno = GUI()
Dyno.show()
sys.exit(app.exec_())
答案 0 :(得分：3)
由于您的数据位于列表中，因此您需要形成每个数据项实例的行。一种方法是使用zip转换列表：
>>> hp = [1,2,3]
>>> rpm = [4,5,6]
>>> time = [7,8,9]
>>> for row in zip(hp,rpm,time):
... print(row)
...
(1, 4, 7)
(2, 5, 8)
(3, 6, 9)
注意每个列表中的第一项是如何打印的，然后是第二项等。您可以使用它来将数据放入行中。这是一个独立的例子：
import csv
class Test:
def __init__(self):
self.torque = [10,20,30]
self.horse_power = [100,200,300]
self.rpm = [1000,2000,3000]
self.time = [1,2,3]
def print(self):
with open('test.csv','w',newline='') as outfile:
outfileWrite = csv.writer(outfile)
outfileWrite.writerow('Torque HP RPM Time'.split())
outfileWrite.writerows(zip(self.torque,self.horse_power,self.rpm,self.time))
t = Test()
t.print()
注意writerows（复数）。这需要列表清单。 writerow（单数）需要单个列表并用于标题。输出文件是：
Torque,HP,RPM,Time
10,100,1000,1
20,200,2000,2
30,300,3000,3
答案 1 :(得分：-1)
首先，不推荐在python中调用定义print。除非你想覆盖python'print'。 'print_to_csv'例如。
至于csv，你需要将你的数据分组为[扭矩，马力，转速，时间]列表，这样你就会看起来像这样，
data_lists = [
[torque(0), horsepower(0), rpm(0), time(0)],
[torque(1), horsepower(1), rpm(1), time(1)],
...
[torque(n), horsepower(n), rpm(n), time(n)]
]
然后你将遍历这个数据列表并逐个打印你的行，
for d in data_datalist:
outfileWrite.writerow([d[0],d[1],d[2],d[3])
当然，有很多方法来构建数据，这只是一个例子。
希望这有帮助。