sorted() function in python 在读取文件时仅按第一位数字对数字进行排序。 我正在尝试在 python 游戏中打印高分列表

Question

The code works as long as the numbers don't contain 0's. Otherwise it sorts like 9 is higher than 10 for example.

def enter_high_score():
    print()
    name=input("Please Enter You Name: ")
    file=open("score.txt", "a")
    file.write(str(9000) +"\t" +(name)+ "\n")
    
    
    file.close()

    file=open("score.txt", "r")
    readthefile = file.readlines()
    sorted_scores = sorted(readthefile,reverse=True)

    print("Top 5 Scores!")
    print("Pos\tPoints\tName")

    for line in range(5):
        # print(str(sortedData[line])+"\t"+str(line+1))
        print(str(line+1)+"\t"+str(sorted_scores[line]))

Answer 1

Vahid is right with their answer, but there's no need to seperate that digit out and create a list of tuples to sort based on the first word in the line as an integer. We can just extract that info directly in the call to sorted .

>>> data = """15 hello
... 9 world
... 3 foo bar"""
>>> lines = data.split('\n')
>>> sorted(lines, key=lambda line: int(line.split(' ', 1)[0]))
['3 foo bar', '9 world', '15 hello']
>>> 

Answer 2

name = input("Please Enter You Name: ") # note that you are appending to the file and at line 5 writing same score every time file = open("score.txt", "a") # use Python f-string file.write(f"9000\t{name}\n") file.close() file = open("score.txt", "r") lines = file.readlines() # For each line create a list of tuples of (int, str), e.g. [(200,John)] records = list(map(lambda line: (int(line.split()[0]), line.split()[1]), lines)) # Highest first, key is saying sort based on first item in (int, str) which is the score sorted_records = sorted(records, key=lambda r: r[0], reverse=True) print(sorted_records)

Answer 3

I figured out a work around as I'm not quite up to the level as mentioned above. So basically, I've created some if statements saying that; if number is within a certain range say 999 - 1000 for example add "00" to the front.

So my scores read 00100 00010 00001 for example... and if it's over any of those specified values there's an else statement goin "woah you scored off the charts your so good!"