我想按字母顺序对我的文件进行排序，列出每个学生在测试中的最高分

Question

def byalphabet():
  if classchoice == '1':
    with open("newFile.txt", "r+")as file:
        file.seek(0)
        scores = file.readlines()
    alphabetical = []
    for i in range (0, len(scores)):
        line = scores[i].rstrip('\n')
        alphabetical.append(line)

    alphabetical = sorted(alphabetical)
    for i in range (0, len(alphabetical)):
        print (alphabetical[i])
    user_scores = {}
    for line in scores:
        name, score = line.rstrip('\n').split(' - ')
        score = int(score)
        if name not in user_scores or user_scores[name] < score:
            user_scores[name] = score
    for name in sorted(user_scores):
        print(name, '-', user_scores[name])

elif classchoice == '2':
    with open("newFile2.txt", "r+")as file:
        file.seek(0)
        scores = file.readlines()
    alphabetical = []
    for i in range (0, len(scores)):
        line = scores[i].rstrip('\n')
        alphabetical.append(line)

    alphabetical = sorted(alphabetical)
    for i in range (0, len(alphabetical)):
        print (alphabetical[i])
    user_scores = {}
    for line in scores:
        name, score = line.rstrip('\n').split(' - ')
        score = int(score)
        if name not in user_scores or user_scores[name] < score:
            user_scores[name] = score
    for name in sorted(user_scores):
        print(name, '-', user_scores[name])

else:
    with open("newFile3.txt", "r+")as file:
        file.seek(0)
        scores = file.readlines()
    alphabetical = []
    for i in range (0, len(scores)):
        line = scores[i].rstrip('\n')
        alphabetical.append(line)
    alphabetical = sorted(alphabetical)
    for i in range (0, len(alphabetical)):
        print (alphabetical[i])        
    user_scores = {}
    for line in scores:
        name, score = line.rstrip('\n').split(' - ')
        score = int(score)
        if name not in user_scores or user_scores[name] < score:
            user_scores[name] = score
    for name in sorted(user_scores):
        print(name, '-', user_scores[name]) `    

我的程序似乎输出了比所需的更多的值

Aaron - 4
Joeseph - 10
Joeseph - 3
Joeseph - 4
Joeseph - 5
Test1 - 1
Test1 - 10
Test1 - 6
Test2 - 4
Zzron - 1
Aaron - 4
Joeseph - 10
Test1 - 10
Test2 - 4
Zzron - 1

Answer 1

更详细的版本：

import io

file0 = io.StringIO('''Aaron - 4
Joeseph - 10
Joeseph - 3
Joeseph - 4
Joeseph - 5
Test1 - 1
Test1 - 10
Test1 - 6
Test2 - 4
Zzron - 1
Aaron - 4
Joeseph - 10
Test1 - 10
Test2 - 4
Zzron - 1''')

def read_file(fle):
    data = {}
    for line in fle.readlines():
        splt = line.split(' - ')
        if len(splt) == 2:
            name, score = splt[0], int(splt[1])
            if not name in data:
                data[name] = score
                continue
            else:
                if score > data[name]:
                    data[name] = score
                    continue
    return data

def print_data(data):
    for name, score in sorted(data.items()):
        print('{} - {}'.format(name, score))


data = read_file(file0)
print_data(data)

输出：

Aaron - 4
Joeseph - 10
Test1 - 10
Test2 - 4
Zzron - 1