我試圖構建一個數據結構,可以改變大小併發布到Firebase。我看到的問題是在數據結構的構建過程中。我有以下的代碼寫成:Python創建詞典結構的字典,嵌套值是一樣的
for i in range(len(results)):
designData = {"Design Flag" : results[i][5],
"performance" : results[i][6]}
for j in range(len(objectiveNameArray)):
objectives[objectiveNameArray[j]] = results[i][columnHeaders.index(objectiveNameArray[j])]
designData["objectives"] = copy.copy(objectives)
for k in range(len(variableNameArray)):
variables[variableNameArray[k]] = results[i][columnHeaders.index(variableNameArray[k])]
designData["variables"] = copy.copy(variables)
for l in range(len(responseNameArray)):
responses[responseNameArray[l]] = results[i][columnHeaders.index(responseNameArray[l])]
designData["responses"] = copy.copy(responses)
for m in range(len(constraintNameArray)):
constraintViolated = False
if constraintNameArray[m][1] == "More than":
if results[i][columnHeaders.index(constraintNameArray[m][0])] > constraintNameArray[m][2]:
constraintViolated = True
else:
constraintViolated = False
elif constraintNameArray[m][1] == "Less than":
if results[i][columnHeaders.index(constraintNameArray[m][0])] < constraintNameArray[m][2]:
constraintViolated = True
else:
constraintViolated = False
if constraintNameArray[m][0] in constraints:
if constraints[constraintNameArray[m][0]]["violated"] == True:
constraintViolated = True
constraints[constraintNameArray[m][0]] = {"value" : results[i][columnHeaders.index(constraintNameArray[m][0])], "violated" : constraintViolated}
designData["constraints"] = copy.copy(constraints)
data[studyName][results[i][4]] = designData
當我包括for循環,我認爲這是預期的每次循環迭代我的成果正在改變內印刷(designData)。但是,如果我在for循環之外包含print(data),我會得到一個數據結構,其中由結果數組添加的值對於循環的每次迭代都是相同的值,即使該鍵不同也是如此。
Comparing print(data) and print(designData)
我提前道歉,如果這是不足夠的信息,這是我對堆棧的第一篇文章,所以請耐心等待我。
如果您想獲得有用的回覆,我強烈建議在問題的主體中張貼您的代碼片段。 –