cell | 易学教程

Copy excel cell data till the nearest filled cell in column

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How can I display letters using html table cells as colored pixels?

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Let's say I have an html table (50 x 50 cells) with a yellow background. I would like to use the background colors of the cells to print letters (A-Z) (e.g. some cells blue and most cells yellow) in an animated loop, using jQuery. I can create a table and a pointer which can loop through all the cells of the table such that it can change the background color of a particular cell (x,y) to different color. However, I don't understand which cells to highlight to form a particular letter. For example, to display the letter "A" on the 50 x 50 grid, which cells do I need to change to a new

Unique cell vectors

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问题 I try to find unique arrays in a cell array. Suppose I have 6 cells with the following vectors: a{1}=[1 2]; a{2}=[1 2 3]; a{3}=[2 3 4]; a{4}=[1 2]; a{5}=[1 2 3]; a{6}=[2 3 4]; Then the result should be [1 2] , [1 2 3] and [2 3 4] . I used u=(cellfun(@unique,a,'Un',0)) , but it doesn't work, How can I do this? 回答1: Here a solution : u = unique(cellfun(@num2str,a,'Un',0)); To transform them back to vector : u2 = cellfun(@str2num,u,'Un',0); 回答2: Here is a way to stay numeric (without converting

两类非常隐蔽的全表扫描，不能命中索引

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两类非常隐蔽的全表扫描，不能命中索引第一类：“列类型”与“where值类型”不符，不能命中索引，会导致全表扫描(full table scan)。数据准备： create table t1 ( cell varchar ( 3 ) primary key ) engine = innodb default charset = utf8 ; insert into t1 ( cell ) values ( '111' ) , ( '222' ) , ( '333' ) ; （1）cell属性为varchar类型；（2）cell为主键，即聚簇索引(clustered index)；（3）t1插入3条测试数据；测试语句： explain select * from t1 where cell = 111 ; explain select * from t1 where cell = '111' ; （1）第一个语句，where后的值类型是整数（与表cell类型不符）；（2）第二个语句，where后的值类型是字符串（与表cell类型一致）；测试结果：（1）强制类型转换，不能命中索引，需要全表扫描，即3条记录；（2）类型相同，命中索引，1条记录；第二类：相join的两个表的字符编码不同，不能命中索引，会导致笛卡尔积的循环计算（nested loop）。数据准备：

Hbase的API操作

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理解好Put、Cell，Result等的概念 package com . atguigu . hbase ; import org . apache . hadoop . conf . Configuration ; import org . apache . hadoop . hbase . * ; import org . apache . hadoop . hbase . client . * ; import org . apache . hadoop . hbase . util . Bytes ; import java . io . IOException ; public class HbaseUtils { public static Connection connection ; static { //获取配置文件对象 Configuration conf = HBaseConfiguration . create ( ) ; conf . set ( "hbase.zookeeper.quorum" , "hadoop202" ) ; try { connection = ConnectionFactory . createConnection ( conf ) ; } catch ( IOException e ) { e . printStackTrace

Row in formula change based on value in another cell

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I'm trying to create a paragraph in excel. I have values listed in another sheet that I want to pull from. Here is the code I'm using: =CONCATENATE("Dear ",'Linkage Log'!I6,", "Blah Blah Blah") I want the column I to change the same, but I'm trying to have it so that the 6 changes depending on a value I type in another cell (e.g. E8). So if I type 7 in the cell, the formula will change to: =CONCATENATE("Dear ",'Linkage Log'!I7,", "Blah Blah Blah") Is this possible? I'm not trying to generate mail, so a mail merge isn't really helpful to me. Thanks for your help! You should be able to use the

PHP Excel - Set cell or Column Direction (RTL)

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I'm looking for a way to set the "Direction" of a cell in Excel from PHP Excel. I've gone over any documentation i could find and found only the option to set the direction for a sheet, however, it does not affect the cell direction but rather, only the layout of the page from LTR to RTL. I need to be able to set a specific Cell or better yet, a column, to be RTL. Please note that I'm not talking about the alignment of the cell, I'm talking about the text direction. this is not a duplication of Set direction sheet in PHPExcel thanks This can only be set at the Worksheet level using // right-to

Labels are lingering in my reusable table cells

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问题 I have a table whose cells contain labels. Whenever I dequeue a reusable cell, the old labels are still lingering on it. I was able to remove them with this: for(int a=[[newcell subviews]count]-1; a>=0;a--) { if([[[[newcell subviews]objectAtIndex:a]class] isSubclassOfClass:[UILabel class]]) { [[[newcell subviews] objectAtIndex:a] removeFromSuperview]; } } But when I select the cell, I can see the old text on top of the new. I tried this: [[newcell.selectedBackgroundView subviews]

xls文件批量导入 MySQL 数据库

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公司最近在做对比账单的事一百多个xls文件需要导入数据库公司直间导出来的支付宝文件用xlrd 打不开之间报错后缀改完也是不好用的下面是我整理出来的代码希望对大家有用有兴趣的朋友可以研究下pandas，应该比xlrd好用有不足之处下方留意指出大家互相学习共同进步。 import MySQLdb import shutil host = "localhost" conn = MySQLdb.connect(host=host, port=3306, user='root', password='123456', database='pdd_statistics', charset='utf8') cursor = conn.cursor() import xlrd import os import win32com.client as win32 # 查询文件夹中的文件的名称 def paths(): global path path = r'C:\Users\Administrator\Desktop\aaaaa' # 这是本地的文件夹路径 for i in os.walk(path): print(i[2]) return i[2] # 修改文件 def up_xlsx(): xlsxs = paths() for x in xlsxs: up

count cell with color

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I want to count number of cell filled with specific color. For ex. Few cell are red, few are green few are yellow. Now I want to count total red/green/yellow. Is there any idea how could I apply it over merged cell also. A prompt response will be appreciated. Regards. Follow the instructions on the link below with the mentioned change below the link. https://support.microsoft.com/en-us/kb/2815384 Change: Change the script given in the link to the following, as the script from microsoft uses color index which may count other shades of a color. Function CountColor(range_data As range, criteria