Python 我做错什么了吗

我学习python的网站没有很好地解释字典，所以我求助于此。我要做的是找出用户键入的天数内这3个房间温度的平均值（最大值为3）。每天有4个温度超过1天。当我运行此代码时，它不会为3个房间产生任何温度

hi={}
days=int(input('How many days of data do you have? '))
print('Average Temperatures:')
f = open('temps1.txt')
g= open('temps1.txt') and open('temps2.txt')
o=open('temps1.txt') and open('temps2.txt') and open('temps3.txt')
if days=='1':
  for line in f:
    parts = line.strip().split(",")
    if parts[0] not in hi:
      hi[parts[0]] = []
    hi[parts[0]].append(int(val[1]))
elif days=='2':
  for line in g:
    parts = line.strip().split(",")
    if parts[0] not in hi:
      hi[parts[0]] = []
    hi[parts[0]].append(int(val[1]))
elif days=='3':
  for line in o:
    parts = line.strip().split(",")
    if parts[0] not in hi:
      hi[parts[0]] = []
    hi[parts[0]].append(int(val[1]))

for k, v in hi.items():
  print("Room: {}, Avg: {}".format(k, sum(v)/days*4))

temps1.txt仅在用户在输入问题中键入1时激活：

Living Room,23
Bedroom,24
Kitchen,22
Living Room,24
Bedroom,26
Kitchen,22
Living Room,25
Bedroom,26
Kitchen,23
Living Room,24
Bedroom,26
Kitchen,23

temps2.txt仅在用户在第一个问题中输入2时激活（与temps1.txt一起使用）：

temps3.txt仅在用户在第一个问题中输入3时激活（与temps1.txt和temps2.txt一起使用）：

---

我是否能够生成一个代码来实现这一点，但没有类似的导入？还有一件事，我是否能够将变量分配给“for in”语句和“if”语句？

让我们分割数据文件的创建和处理，从而得出以下答案：

def createData():
    """Create demo data as files 'temp1.txt','temp2.txt','temp3.txt'"""
    with open("temp1.txt","w") as f:
        f.write("""Living Room,23
Bedroom,24\nKitchen,22\nLiving Room,24\nBedroom,26\nKitchen,22\nLiving Room,25\nBedroom,26\nKitchen,23\nLiving Room,24\nBedroom,26\nKitchen,23\n""")

    with open("temp2.txt","w") as f:
        f.write("""Living Room,26\nBedroom,24\nKitchen,23\nLiving Room,27\nBedroom,24\nKitchen,24\nLiving Room,28\nBedroom,25\nKitchen,26\nLiving Room,29\nBedroom,26\nKitchen,28\n""")

    with open("temp3.txt","w") as f:
        f.write("""Living Room,28\nBedroom,29\nKitchen,28\nLiving Room,28\nBedroom,30\nKitchen,29\nLiving Room,29\nBedroom,29\nKitchen,31\nLiving Room,21\nBedroom,23\nKitchen,21\n""")

使用此演示数据，我们开始用户输入和计算。我们将1到3个文件中所有需要的数据读入一个dict并输出：

# create all data files  
createData()    

# process data 
nrDays = 0

# ask for how many days, catch invalid values until valid one is given
while nrDays not in range(1,4):
    try:
        nrDays=input('How many days of data do you have? [1-3] ')
        nrDays=int(nrDays)
    except: # catchall
        print("Parsing error. 1 to 3 allowed. {} given".format(nrDays))

# read data only from files needed  
temps = {}
for d in range(1,nrDays+1): 
    # format file names as temp1.txt to temp3.txt as needed
    with open ("temp{}.txt".format(d),"r") as f:  # open file
        for line in f:
            if line.strip():     # if line not empty, f.e. dangling newline at end
                room,temp = line.strip().split(",")
                temp = int(temp)   # convert to int
                k = temps.setdefault(room,[]) # creates the empty list if needed
                                              # returns the value if present
                k.append(temp)

print('Average Temperatures:')  

for k, v in temps.items():
      print("Room: {}, Avg: {}".format(k, sum(v)/len(v))) # get the length from the list

输出：

How many days of data do you have? 3
Average Temperatures:
Room: Living Room, Avg: 26.0
Room: Bedroom, Avg: 26.0
Room: Kitchen, Avg: 25.0

How many days of data do you have? 2
Average Temperatures:
Room: Living Room, Avg: 25.75
Room: Bedroom, Avg: 25.125
Room: Kitchen, Avg: 23.875

How many days of data do you have? 1
Average Temperatures:
Room: Living Room, Avg: 24.0
Room: Bedroom, Avg: 25.5
Room: Kitchen, Avg: 22.5

---

如果您输入1-3之外的任何内容，您将得到一个新的输入提示（如果输入了int），或者一条消息和一个新的提示（如果没有给出int）。

open（…）

返回一个文件的句柄。通过

和
组合多个文件句柄，您希望实现什么？Doku：您将
days
转换为整数，但如果days=='1'，
则尝试将其作为字符串进行比较。这行不通。顺便说一句，
g=open（'temps1.txt'）和open（'temps2.txt'）
并不像你想象的那样。
# create all data files  
createData()    

# process data 
nrDays = 0

# ask for how many days, catch invalid values until valid one is given
while nrDays not in range(1,4):
    try:
        nrDays=input('How many days of data do you have? [1-3] ')
        nrDays=int(nrDays)
    except: # catchall
        print("Parsing error. 1 to 3 allowed. {} given".format(nrDays))

# read data only from files needed  
temps = {}
for d in range(1,nrDays+1): 
    # format file names as temp1.txt to temp3.txt as needed
    with open ("temp{}.txt".format(d),"r") as f:  # open file
        for line in f:
            if line.strip():     # if line not empty, f.e. dangling newline at end
                room,temp = line.strip().split(",")
                temp = int(temp)   # convert to int
                k = temps.setdefault(room,[]) # creates the empty list if needed
                                              # returns the value if present
                k.append(temp)

print('Average Temperatures:')  

for k, v in temps.items():
      print("Room: {}, Avg: {}".format(k, sum(v)/len(v))) # get the length from the list

How many days of data do you have? 3
Average Temperatures:
Room: Living Room, Avg: 26.0
Room: Bedroom, Avg: 26.0
Room: Kitchen, Avg: 25.0

How many days of data do you have? 2
Average Temperatures:
Room: Living Room, Avg: 25.75
Room: Bedroom, Avg: 25.125
Room: Kitchen, Avg: 23.875

How many days of data do you have? 1
Average Temperatures:
Room: Living Room, Avg: 24.0
Room: Bedroom, Avg: 25.5
Room: Kitchen, Avg: 22.5