'io.BufferedReader'对象不可订阅'

Question

我正在编写一个Stroop任务来做精神病实验。我试图绘制图像和文本刺激，但我得到了错误消息（如下所示）。在

我试过查看google/stackoverflow页面，但是不理解这个错误消息（所以很难修复这个代码）。在

# ------Prepare to start Routine "instructions"-------
t = 0
instructionsClock.reset()  # clock
frameN = -1
continueRoutine = True
# update component parameters for each repeat
ready = event.BuilderKeyResponse()
# keep track of which components have finished
instructionsComponents = [instrText, ready]
for thisComponent in instructionsComponents:
    if hasattr(thisComponent, 'status'):
        thisComponent.status = NOT_STARTED

#read stimuli file
trials = open('cog2.csv', 'rb')
imageFile = 0     #imageFile = trials[trialNumber][Column]
corrAns = 1       #corrAns = trials[trialNumber][Column]
Congruent = 2     #Congruent = trials[trialNumber][Column]
stimCat = 3       #stimCat = trials[trialNumber][Column]
Superimposed = 4  #Superimposed = trials[trialNumber][Column]
Word = 5          #word = trials[trialNumber][Column]

#turn the text string into stimuli
textStimuli = []
imageStimuli = []
for trial in trials:
    textStimuli.append(visual.TextStim(win, text=trials[Word]))  <---- ERROR
    imageStimuli.append(visual.ImageStim(win, size=[0.5, 0.5], image=trials[imageFile]))

我试着从我上传的excel文档（包含jpg图片的路径，以及我想在图片上叠加的单词）写出draw刺激。在

但目前，我收到了错误消息：

^{pr2}$

Answer 1

trials变量是一个file对象（来自trials = open('cog2.csv', 'rb')），您试图用trials[Word]作为列表访问它，因此出现错误。在

您应该使用csv.reader方法以CSV的形式读取文件，这样trial将作为一个列表分配给每一行，并且您可以按照您的预期使用索引访问每个列：

import csv
for trial in csv.reader(trials):
    textStimuli.append(visual.TextStim(win, text=trial[Word]))
    imageStimuli.append(visual.ImageStim(win, size=[0.5, 0.5], image=trial[imageFile]))