Question

我对Python很陌生。我想在Python中保持高分，并且只写新球员的名字。我想在一个更大的程序中实现它，但我还不能完全理解这个逻辑。

你如何处理一个比以前更好的老玩家？你如何处理两个同名的球员有分数？

save_name = raw_input('Enter your name. ').title()
save_score = raw_input('Enter your score. ')

text_file = open("highscores.txt", "a")
text_file.write("\n" + save_name + ' has a score of ' + save_score + "\n")
text_file.close()

print ("\n")
text_file = open("highscores.txt", "r")
whole_thing = text_file.read()
print (whole_thing)
text_file.close()

Answer 1

我假设您的目标是阅读高分并仅添加新玩家所做的分数。如果是这样，你要问的问题是：

你如何处理一个比以前更好的老玩家？
你如何处理两名同名球员？
您想如何显示您的高分？

就我个人而言，我不会在文本文件中执行此操作，而是将其写入字典并pickle。

import pickle

high_scores = {"Adam Smith": 65536, "John Doe": 10000}
with open("highscores.pkl","wb") as out:
    pickle.dump(high_scores, out)

然后当你必须写一个新的分数时：

import collections

Score = collections.namedtuple("Score", ["name","score"]) # just to make things easy
new_score = Score("Joe Schmoe",12000)

with open("highscores.pkl","rb") as in_:
    high_scores = pickle.load(in_)
if new_scores.name not in high_scores:
    high_scores[new_scores.name] = new_scores.score
with open("highscores.pkl","wb") as out:
    pickle.dump(high_scores, out)

这在显示高分时也会有所帮助，因为您可以执行以下操作：

print("{{TITLE:^{PAGE_WIDTH}}}".format(PAGE_WIDTH=80).format(TITLE="HIGH SCORES"))
print("-" * 80)
for name,score in high_scores.items():
    print("{{name:>{col_width}}} | {{score:<{col_width}}}".format(col_width=(80-3)//2).format(name=name, score=score))

此位的格式对于您的用例来说有点过分，但如果您需要在较小的屏幕上显示（每页较少的列数），您以后会感谢我！将所有80替换为常量，并将每页的列放在常量中，例如MAX_WIDTH。容易腻。

Answer 2

首先，text_file.readlines(save_name)会抛出TypeError，因为save_name不是整数。见the readlines documentation。其次，由于您没有将变量赋值给readlines的返回值，因此该行不会执行任何操作。我不完全确定你在这里想要实现的目标。这部分代码工作正常：

save_name = raw_input('Enter your name. ').title()
save_score = raw_input('Enter your score. ')

text_file = open("highscores.txt", "a")
text_file.write("\n" + save_name + ' has a score of ' + save_score + "\n")
text_file.close()

它将正确写入highscores.txt文件。如果你想打印highscores文件的内容，你的代码的最后一部分就是这么做。

text_file = open("highscores.txt", "r")
whole_thing = text_file.read()
print (whole_thing)
text_file.close()

这两个引用块之间的部分可能已经过时和/或我们需要更好地规范您要实现的目标。

Answer 3

使用您的代码我做了一些更改，首先检查高分，只有在用户击败最后得分时才添加新分数：

save_name = raw_input('Enter your name. ').title()
save_score = raw_input('Enter your score. ')

last_high_score = 0

#look for highscore
try:
    text_file = open("highscores.txt", "r")
    for line in text_file.readlines():
        #you can use regular expressions here to simplify the lookup

        #get the las part of the score assuming the pattern:
        #"text[ has a score of] score"

        line_parts = line.split(" has a score of ")
        if len(line_parts) > 1:
            #removing the end \n character
            line_parts = line_parts[-1].split("\n")
            score = line_parts[0]
            #compare the last high score with the newest
            if score.isdigit() and int(score) > last_high_score:
                last_high_score = int(score)
except Exception, e:
    #the first time trows an exception because the high score file does not exist
    pass

#check if there is a new high score
if int(save_score) > last_high_score:
    text_file = open("highscores.txt", "a")
    text_file.write("\n"+save_name+' has a score of '+save_score+"\n")
    text_file.close()

print ("\n")
text_file = open("highscores.txt", "r")
whole_thing = text_file.read()
print (whole_thing)
text_file.close()

Answer 4

ave_name = raw_input('Enter your name. ').title()
save_score = raw_input('Enter your score. ')

last_high_score = 0

#look for highscore
try:
    text_file = open("highscores.txt", "r")
    for line in text_file.readlines():
        #you can use regular expressions here to simplify the lookup

        #get the las part of the score assuming the pattern:
        #"text[ has a score of] score"

        line_parts = line.split(" has a score of ")
        if len(line_parts) > 1:
            #removing the end \n character
            line_parts = line_parts[-1].split("\n")
            score = line_parts[0]
            #compare the last high score with the newest
            if score.isdigit() and int(score) > last_high_score:
                last_high_score = int(score)
except Exception, e:
    #the first time trows an exception because the high score file           
     pass
#unban user14762509 moderator fags


 #check if there is a new high score
if int(save_score) > last_high_score:
       text_file = open("highscores.txt", "a")
         text_file.write("\n"+save_name+' has a score of        '+save_score+"\n")
     text_file.close()

print ("\n")
text_file = open("highscores.txt", "r")
whole_thing = text_file.read()
  print (whole_thing)
text_file.close()

Answer 5

如果你只想写用户的名字，而不是他们的高分，你不能只改变这个：

text_file.write（“\ n”+ save_name +'得分为'+ save_score +“\ n”）

对此：

text_file.write（“\ n”+ save_name +“\ n”）

Answer 6

我不确定这有帮助吗

import time
import operator
startTime=time.time()
x=input('testonly')



endTime=time.time()
userscore=int(endTime-startTime)


scorelist=[]
beathighscore=False

scorefile=open('score.txt','r')
score=scorefile.readlines()
scorefile.close

for line in score:
    scorelist.append(line.strip())
if len(score)!=0:
    for item in scorelist:
        oldscore=((item[0])[1])
        oldscore=int(oldscore)
else:
    oldscore=float('inf')
if userscore<oldscore:
    print("you beat the highscore")
    username=input("pls enter ur name")
    newscore=(username,userscore)
    scorelist.append(newscore)


with open('score.txt',"w") as writescore:
    for item in scorelist:
        writescore.write(''.join(str(item))+'\n')
writescore.close

在文本文件中保持高分

6 个答案: