集中答疑专用贴

刚卓

请教高人：小可在微信40课（用文件保存游戏2）上碰到一点问题。
我和教程图片上写得一样，为何会出现‘times'没有定义？谢谢
# -*- coding: utf-8 -*-
from random import randint
f=open('/Users/Max/Desktop/tires/game.txt')
score=f.read().split() #extraer datos desde carpeta
f.close()
game_times=int(score[0])
min_times=int(score[1])
total_times=int(score[2]) #depositar a cada variables
if game_times > 0:
    avg_times=float(total_times)/game_times #calculo
else:
    avg_times=0
print'you have played %d round， you got answer at least %d round，average round is %.2f'%(game_times, min_times, avg_times)
   
num=randint(1,10)
print'Guess number'
bingo=False
while bingo==False:
    game_times +=1 #ronda mas 1
    answer=input()
    if answer<num:
        print'too small'
    if answer>num:
        print'too big'
    if answer==num:
        print'bingo!'
        bingo=True
if game_times==0 or game_times<min_times:
    min_times=times # if it's first time or round is less than least round, then update the least round
total_times+=times #total round of game is increasing
game_times+=1 #game time is increasing
result='%d %d %d' % (game_times, min_times, total_times)
f=open('/Users/Max/Desktop/tires/game.txt','w')
f.write(result)
f.close()
-------------------------------------------------------------------------

================= RESTART: /Users/Max/Desktop/tires/game.py =================
you have played 2 round， you got answer at least 3 round，average round is 2.00
Guess number
2
too small
5
too small
7
too big
6
bingo!

Traceback (most recent call last):
  File "/Users/Max/Desktop/tires/game.py", line 30, in <module>
    total_times+=times #total round of game is increasing
NameError: name 'times' is not defined
>>>

TED

刚卓 发表于 2018-1-19 10:57
请教高人：小可在微信40课（用文件保存游戏2）上碰到一点问题。
我和教程图片上写得一样，为何会出现‘time ...

先看报错原因，NameError: name 'times' is not defined，times没有定义，那接下来查你代码对times是不是漏了定义就好了；

微信40课图片中，num=randint(1,100)这句之后，有个times=0

刚卓

TED 发表于 2018-1-19 17:00
先看报错原因，NameError: name 'times' is not defined，times没有定义，那接下来查你代码对times是不是 ...

谢谢你！

刚卓

老师好，

我在41课（用文件保存游戏3）里有几个问题：1.不管猜几次，文档里的记录次数总是比猜的次数多一次。 2. 文档里第二列（最少猜出答案轮数）和第三列（平均猜出答案轮数）总是0. 3. 保存游戏记录的文档是不是只能用txt？我试过用docx，结果不行。4. 代码第42行和第43行：if game_times==0 or times<min_times:
    min_times=times
在第40课的解释是#如果是第一次玩，或者轮数比最小轮数少，则更新最小轮数。这句话是否这样理解：假如A是第一次玩，则文档自动记录一个新数据，若B是第3次玩，且用了比前两次更少的轮数猜出答案，则更新B的最少轮数？谢谢！
# -*- coding: utf-8 -*-
from random import randint

name=raw_input('your name please: ')

f=open('/Users/Max/Desktop/tires/game.txt')
lines=f.readlines()
f.close()

scores={} #inicialization de diccionario vacio

for l in lines:
    s=l.split() #make each row of data as list
    scores[s[0]]=s[1:] #first term is key, rest are values
score=scores.get(name) #search current player's data
if score is None:
    score=[0, 0, 0]
   
game_times=int(score[0])
min_times=int(score[1])
total_times=int(score[2]) #depositar a cada variables
if game_times > 0:
    avg_times=float(total_times)/game_times #calculo
else:
    avg_times=0
print'you have played %d round， you got answer at least %d round，average round is %.2f'%(game_times, min_times, avg_times)
   
num=randint(1,10)
times=0
print'Guess number'
bingo=False
while bingo==False:
    game_times +=1 #ronda mas 1
    answer=input()
    if answer<num:
        print'too small'
    if answer>num:
        print'too big'
    if answer==num:
        print'bingo!'
        bingo=True
if game_times==0 or times<min_times:
    min_times=times # if it's first time or round is less than least round, then update the least round
total_times+=times #total round of game is increasing
game_times+=1 #game time is increasing

scores[name ]=[str(game_times),  str(min_times),  str(total_times)] #update score to determined player,str for reformation
result='' #inicializing empty string for data deposit purpose
for n in scores:
    line=n+ ' ' + ' ' .join (scores[n])+'\n'
    result+=line #agregando resultado
   
f=open('/Users/Max/Desktop/tires/game.txt','w')
f.write(result)
f.close()
-------------------------------------------------------
输出
your name please: Luo
you have played 0 round， you got answer at least 0 round，average round is 0.00
Guess number
6
bingo!
>>>
================= RESTART: /Users/Max/Desktop/tires/game.py =================
your name please: A
you have played 0 round， you got answer at least 0 round，average round is 0.00
Guess number
6
too small
8
too small
9
too small
10
bingo!
>>>
================= RESTART: /Users/Max/Desktop/tires/game.py =================
your name please: A
you have played 5 round， you got answer at least 0 round，average round is 0.00
Guess number
6
too small
9
too small
10
bingo!
>>>
------------------------------------------------------------
文档显示
A 9 0 0
Han 10 0 0
Luo 2 0 0

TED

刚卓 发表于 2018-1-20 11:31
老师好，

我在41课（用文件保存游戏3）里有几个问题：1.不管猜几次，文档里的记录次数总是比猜的次数多一 ...

while bingo ==False：中应该是times+=1 不是game_times+=1
game_times是记录玩了几局游戏，times是记录每局游戏猜了几次

TED

刚卓 发表于 2018-1-20 11:31
老师好，

我在41课（用文件保存游戏3）里有几个问题：1.不管猜几次，文档里的记录次数总是比猜的次数多一 ...

如果是第一次玩，min_times就等于这次玩的次数；之后的话会比较 更新最小的

刚卓

老师好，

今天在46课查天气里有个问题，我的代码如下，输出content1的时候看到一堆奇怪的东西，没有全部省份的代码，这是为什么？谢

刚卓

奇怪，回复下半部分怎么没了？重发一次：
代码：
import urllib2
url1='http://m.weather.com.cn/data5/city.xml'
content1=urllib2.urlopen(url1).read()
provinces=content1.split(',')
url = 'http://m.weather.com.cn/data3/city%s.xml'
print content1
--------------------------------------------
输出：
<html>
<head>
</head>
<body>
<script type="text/javascript">
        window.onload = function() {
        window.open("/","_self");
        };
        </script>
<!-- START WRating v1.0 -->
<script type="text/javascript" src="http://c.wrating.com/a1.js">
</script>
<script type="text/javascript">
var vjAcc="860010-2151010100";
var wrUrl="http://c.wrating.com/";
vjTrack("");
</script>
<noscript><img src="http://c.wrating.com/a.gif?a=&c=860010-2151010100" width="1" height="1"/></noscript>
<!-- END WRating v1.0 -->
<script type="text/javascript">
window._wat = window._wat || [];
(function() {
    var wm = document.createElement("script");
    wm.src = "http://analyse.weather.com.cn/js/v1/wa.js?site_id=1";
    var s = document.getElementsByTagName("script")[0];
    s.parentNode.insertBefore(wm, s);
})();
</script>
</body>
</html

crossin先生

刚卓 发表于 2018-1-21 10:54
奇怪，回复下半部分怎么没了？重发一次：
代码：
import urllib2

data5 改 data3，第一个帖子开头有说

刚卓

crossin先生 发表于 2018-1-21 23:16
data5 改 data3，第一个帖子开头有说

谢谢先生！出来了，但为什么要改成data3?代码中的URL为何都是没网页的？还有，对于每个城市，抓取地区列表的url是什么？

还有,对于每个省，抓取城市列表的代码（如下），第14行是否可有可无，因为输出的城市和城市代码总是用‘，’分开的。

# -*- coding: utf-8 -*-
import urllib2
url1='http://m.weather.com.cn/data3/city.xml'   
content1=urllib2.urlopen(url1).read()
provinces=content1.split(',')
url = 'http://m.weather.com.cn/data3/city%s.xml'
print content1

url2='http://m.weather.com.cn/data3/city%s.xml'
for p in provinces:
    p_code=p.split('|')[0]
    url2=url%p_code
    content2=urllib2.urlopen(url2).read()
    cities=content2.split(',')
    print content2
----------------------------------------
谢