我试图构建一个数据结构,可以改变大小并发布到Firebase。我看到的问题是在数据结构的构建过程中。我有以下的代码写成:Python创建词典结构的字典,嵌套值是一样的
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
当我包括for循环,我认为这是预期的每次循环迭代我的成果正在改变内印刷(designData)。但是,如果我在for循环之外包含print(data),我会得到一个数据结构,其中由结果数组添加的值对于循环的每次迭代都是相同的值,即使该键不同也是如此。
Comparing print(data) and print(designData)
我提前道歉,如果这是不足够的信息,这是我对堆栈的第一篇文章,所以请耐心等待我。
如果您想获得有用的回复,我强烈建议在问题的主体中张贴您的代码片段。 –