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[size=medium][b]Intellij IDEA 无法识别Maven 项目[/b][/size] [size=small] [b]出现的问题[/b] [/size] [size=small]当修改系统的hosts文件后，IDEA会出现无法识别Maven项目，并无法加载Maven项目骨架的问题。[/size] [size=small] [b]解决办法[/b] [/size] [size=small] 参见： [url]http://www.jianshu.com/p/fb7bddca7b1e[/url] [/size] 来源： CSDN 作者： TRAMP_ZZY 链接： https://blog.csdn.net/TRAMP_ZZY/article/details/84803080

Microbit板子的25个led灯，是5X5的阵列，led(lights emitting diodes)中文叫发光二极管，有单向导电性，还发光，有各种颜色的，红，蓝，黄等等。mPython可以让你完全控制这些灯，产生各种有趣的效果。有好多已经预置好图像放在Image这个对象中，好像又来了一个概念，这里你就把他理解为一个图片盒，里面有现存的各种图案，我们只需要拿出来用就可以了。比如说，笑脸，Image.HAPPY,心，Image.HEART ，这些是预置好的，具体是怎么控制的不用去操心，当前，我们也可以自己画一些图案，哪些灯点亮，哪些灯不点亮，都可以控制，以后的课程再说。 . 1 Image.HEART Image.XMAS Image.HEART_SMALL Image.PACMAN Image.HAPPY Image.TARGET Image.SMILE Image.TSHIRT Image.SAD Image.ROLLERSKATE Image.CONFUSED Image.DUCK Image.ANGRY Image.HOUSE Image.ASLEEP Image.TORTOISE Image.SURPRISED Image.BUTTERFLY Image.SILLY Image.STICKFIGURE Image.FABULOUS Image.GHOST Image

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: We are going to implement a multi-process software and we are looking for a proper IPC. Facts: We are going to use Java (and C if we face something time critical) All the processes are on a single Unix machine. The processes sends each other lots (about 1000) of small (about 4k) data per second. What IPC tech do you recommend? Web services, RMI, TCP Sockets, Unix Sockets, Pipes, ...? 回答1: All the above could do this. 1000/s isn't that much (even for 4 KB) I would add Active MQ and ZeroMQ to the list. I would use https://github.com/peter

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have multiple divs like this: <div class="small"></div> <div class="small"></div> <div class="small"></div> <div class="small"></div> <div class="large"></div> <div class="large"></div> <div class="small"></div> <div class="small"></div> <div class="small"></div> <div class="small"></div> <div class="small"></div> <div class="small"></div> <div class="small"></div> <div class="small"></div> I want to select every 4 .small divs to wrap in another div so it's like this: <div class="box"> <div class="small"></div> <div class="small"></div>

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I was wondering with my colleague today whether std::vector can be implemented to make use of small buffer optimization. By looking into the C++11 draft, I read at 23.3.1p8 The expression a.swap(b), for containers a and b of a standard container type other than array, shall exchange the values of a and b without invoking any move, copy, or swap operations on the individual container elements. That at first seems to outlaw small buffer optimization, but under the as-if rule, we would be allowed to still do small buffer optimization for non

原题链接在这里： https://leetcode.com/problems/largest-1-bordered-square/ 题目： Given a 2D grid of 0 s and 1 s, return the number of elements in the largest square subgrid that has all 1 s on its border, or 0 if such a subgrid doesn't exist in the grid . Example 1: Input: grid = [[1,1,1],[1,0,1],[1,1,1]] Output: 9 Example 2: Input: grid = [[1,1,0,0]] Output: 1 Constraints: 1 <= grid.length <= 100 1 <= grid[0].length <= 100 grid[i][j] is 0 or 1 题解： For each cell in the grid, calculate its farest reach on top and left direction. Then starting from l = Math.min(grid.length, grid[0].length) to l = 1,

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I using hive through Spark. I have a Insert into partitioned table query in my spark code. The input data is in 200+gb. When Spark is writing to a partitioned table, it is spitting very small files(files in kb's). so now the output partitioned table folder have 5000+ small kb files. I want to merge these in to few large MB files, may be about few 200mb files. I tired using hive merge settings, but they don't seem to work. 'val result7A = hiveContext.sql("set hive.exec.dynamic.partition=true") val result7B = hiveContext.sql("set hive.exec

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I constructed a thought bubble with HTML and CSS and found an issue solely on IE11 - every other browser (down to IE9) works great. The idea is simple: Have a container that contains text and give it a background-color and round corners. Then put another element into it and make it look like an arrow. Position the arrow so that it sits right next to the container. The problem: Somehow, even though the arrow sits perfectly adjusted, there is a very small line between arrow and container. And this line is less then 1px in height. If I move the

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am working on a spatial problem using the sf package in conjunction with dplyr and purrr . I would prefer to perform spatial operations inside a mutate call, like so: simple_feature %>% mutate(geometry_area = map_dbl(geometry, ~ as.double(st_area(.x)))) I like that this approach allows me to run a series of spatial operations using %>% and mutate . I dislike that this approach seems to significantly increase the run-time of the sf functions (sometimes prohibitively) and I would appreciate hearing suggestions about how to overcome this

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I am attempting to read a blob message and display it as a variable in one of my procedures, but am getting the error below: Error - ORA-22835: Buffer too small for CLOB to CHAR or BLOB to RAW conversion (actual: 9923, maximum: 2000) I have googled and found a suggestion to trim the blob message as below, but would rather display the complete blob message as a string. UTL_RAW.CAST_TO_VARCHAR2(dbms_lob.substr(variable_name,2000,1)) How can I display the complete message? Is there a setting on either the database or procedure level that I can