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需求 编写一个while循环，让用户输入一个专辑的歌手，名称和专辑歌曲数量（选填），获取输入的信息，并且在退出之前打印这些专辑，要求过滤重复的专辑。在这个while循环中，务必要提供退出途径。 逻辑图: Created with Raphaël 2.1.0 开始 提示用户输入 输入的是exit？ 专辑列表有元素？ 专辑元素去重 打印专辑列表中的元素 结束 将用户输入的内容存入到列表中 yes no yes no 代码块 def make_album (singer,album_name,size= '' ) : album_1 = {} album_1[ "singer" ]=singer album_1[ "album_name" ]=album_name if (size): album_1[ "size" ]=int(size) return album_1 tips= 'please enter singer and album name, split with ",", enter exit to exit this program:\n' flag = True album_list=[] new_list=[] while flag: info = raw_input(tips) flag = info!= "exit" if ( not flag): if (len

I used to do it but I haven't done it in a while and i've added to my game. Don't remember where on Xcode I can check the approximate app store size of my app. I plugged in the iPhone into my mac. I clicked on Windows, Devices expecting it to be there but it wasn't. I don't remember. Where on Xcode can I check the approximate app store size of my app? The Organizer has this functionality for Archives. So, you'll need to create an archive: Product > Archive (you need the iOS device scheme selected here, which means you need a valid signing identity set up) Window > Organizer Select the

When we create an array, we cannot change its size; it's fixed. OK, seems nice, we can create a new bigger array and copy the values one by one and that's little slow. What's the technical background of it? This question didn't mention a language so I'm going to choose 'C' based arrays for my answer. Arrays are allocated as a single chunk of memory. Growing an array is problematic because the only way to do it properly is to grow it at the end. For a growth of size N there must be at least N free bytes at the end of the array before the next allocated address. Supporting this type of

I have some radiobuttons in an app that works with touch. Because the end-user can have thick fingers, I want to make the circle and text int he radiobutton bigger. Problem is, I can only make the text bigger, not the circle in the radiobutton. <RadioButton VerticalAlignment="Center" x:Name="rbtnContainers" Click="SetContainers" FontSize="18">Containers</RadioButton> Using height doesn't work either. It makes the radiobutton bigger, but the circle remains the same. Any hint or answer is appreciated. This should work for you. <Viewbox Height="40"> <RadioButton></RadioButton> </Viewbox> another

What are the most commonly used pixel sizes (primarily widths) and what are there advantages and disadvantages? How can I best find a happy medium to give a good experience to people with a wide variety of monitor sizes? An answer with an explanation rather than just the size would be greatly appreciated. the most grids use a width of 960px. (When the design has a fixed width). When you take a look at global statistics 1024 range resolutions are still the most common: http://gs.statcounter.com/#resolution-ww-monthly-201006-201106 Do not use 1000 width. (You have to count in the border width of

Why is GHC's Int type not guaranteed to use exactly 32 bits of precision? This document claim it has at least 30-bit signed precision. Is it somehow related to fitting Maybe Int or similar into 32-bits? It is to allow implementations of Haskell that use tagging. When using tagging you need a few bits as tags (at least one, two is better). I'm not sure there currently are any such implementations, but I seem to remember Yale Haskell used it. Tagging can somewhat avoid the disadvantages of boxing, since you no longer have to box everything; instead the tag bit will tell you if it's evaluated etc

I'm writing a jQuery function where I'd like to access both the native size of an image, and the size specified for it on the page. I'd like to set a variable for each. How is that done? Georg Schölly Modern browsers When I wrote this answer back in 2009 the browser landscape was much different. Nowadays any reasonably modern browser supports Pim Jager's suggestion using img.naturalWidth and img.naturalHeight . Have a look at his answer. Legacy answer compatible with super old browsers // find the element var img = $('#imageid'); /* * create an offscreen image that isn't scaled * but contains