小编ErH*_*unt的帖子

当我尝试存在游戏时，我似乎无法摆脱这个错误。游戏运行良好，但只有在我尝试存在游戏时才会出现错误。

import pygame
from pygame import *
import random
import time
import os
import sys
from pygame.locals import *


black = (0,0,0)
white = (255,255,255)

pygame.init()

def game():

 os.environ['SDL_VIDEO_CENTERED'] = '1'
 mouse.set_visible(False)

#screen
screen_width = 800
screen_height = 500
screen = pygame.display.set_mode([screen_width,screen_height])
#load images etc.
backdrop = pygame.image.load('bg.jpg').convert_alpha()
menu = pygame.image.load('green.jpg').convert_alpha()
ballpic = pygame.image.load('ball.gif').convert_alpha()
mouseball = pygame.image.load('mouseball.gif').convert_alpha()
display.set_caption('Twerk')
back = pygame.Surface(screen.get_size())

def text(text,x_pos,color,font2=28):
    tfont = pygame.font.Font(None, font2)

    text=tfont.render(text, True, color)
    textpos = text.get_rect(centerx=back.get_width()/2)
    textpos.top = x_pos
    screen.blit(text, textpos)

start = …

我想从列表列表中删除所有出现的给定值.例如,输入:

'a' ["abc", "bc", "aa"] 

输出:

 ["bc", "bc", ""]

至今:

remove :: Eq a => a -> [[a ]] -> [[a ]]
remove y xs = filter(\x -> x/= y) xs

我收到了错误,请提前谢谢.

我有一个函数(频率),它计算列表中每个不同值出现在该列表中的次数.例如,

frequency "ababca" 

应该返回:

[(3, 'a'), (2, 'b'), (1, 'c')].

这工作正常,但现在我需要使用此函数使用列表列表中的第一个元素对列表进行排序.

results   :: [Party ] -> [(Int, Party)]
results  xs = ??? frequency (sort xs) ??? 

期望输出的例子:

[(1, "Green"), (2, "Red"), (3, "Blue")]

以上不起作用,我不知道我能做什么.

使用常规'排序'

先感谢您.

目前我正在使用DatePicker(view-source:http://jqueryui.com/demos/datepicker/default.html)但是我在添加Timepicker插件时遇到了困难(https://github.com/trentrichardson/jQuery -Timepicker-Addon),如何正确使用插件？

谢谢 :)

我有一个高阶函数,它将采取:

results ["Red", "Blue", "Green", "Blue", "Blue", "Red"]

并返回:

[(1,"Green"),(2,"Red"),(3,"Blue")]

我需要使用结果函数并创建一个名为winner的新函数:

winner :: [Party ] -> Party
winner xs = 

这将输出最多出现的颜色并删除元组中的第一个元素,如果两个颜色具有相同的出现次数,则输出两个颜色,例如:

winner ["Red", "Blue", "Green", "Blue", "Blue", "Red"]

输出:

"blue"

到目前为止,我已经尝试过使用snd和tail但是我一直都会遇到错误.先感谢您.

下面的jquery将日期时间从括号中删除,而不是日期.

下面是jquery:

 $('.counter_area').html('<div class="open-ViewCustomer well well-sm"' +
                'data-toggle="modal" data-id=' + v.id +
                ' data-first=' + v.first_name +
                ' data-last='  + v.last_name +
                ' data-time='  + v.joined_at +
                ' data-note='  + v.note +
                ' data-download=' + v.attach +
                ' href="#viewCustomer" data-placement="bottom" title="View Customer Details And Options">' + v.first_name +
                ' ' + v.last_name +
                '</div>'
            );

这就是它产生的:

<div class="open-ViewCustomer well well-sm" data-toggle="modal" data-id="2" data-first="joe" 
data-last="doe" data-time="2014-03-26" 18:22:50="" data-note="null" data-download="null" 
href="#viewCustomer" data-placement="bottom" title="View Customer Details And Options">joe   doe</div>

你可以看到data-time="2014-03-26" 18:22:50=""应该是 …