each

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: This is really driving me mad.. I read everywhere but still can't understand why mine isn't working I have a main report( a dummy query returning me only one row) and 2 subreports(each with its own header) found in two different detail band. The second subreport splits into multiple excel sheets! The main report doesn't contain any groups.. its just a dummy query and has no links with the subreports. This is what i did in the main report: Add in Properties : Name="net.sf.jasperreports.export.xls.one.page.per.sheet " with Value="True" Set

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 trying to create rails application with postgresql database, but when I create database rake db:migrate bash show me an error FATAL: role "my" does not exist how fix? sorry for my bad English UPD my@my-P5K-SE ~/ror/timonin $ rake db:create FATAL: role "my" does not exist /usr/local/rvm/gems/ruby-2.1.3/gems/activerecord-4.1.4/lib/active_record/connection_adapters/postgresql_adapter.rb:898:in `rescue in connect' /usr/local/rvm/gems/ruby-2.1.3/gems/activerecord-4.1.4/lib/active_record/connection_adapters/postgresql_adapter.rb:888:in `connect'

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): 由 翻译 强力驱动 问题: I borrowed this example dataset from here : # Load library library ( ggplot2 ) # Load data data ( mtcars ) # Plot data p <- ggplot ( mtcars , aes ( x = disp , y = mpg )) + geom_point () + facet_grid ( gear ~ am ) p <- p + geom_smooth ( method = "lm" ) print ( p ) In above code the regression methods and formulae are the same in all facets. If we want to specify formula for facet (or panel) 6 , we have the following code, from here : # Smoothing function with different behaviour depending on the panel custom . smooth <- function (

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: This question already has an answer here: What's the difference between lists and tuples? 15 answers In Python, when should you use lists and when tuples? Sometimes you don't have a choice, for example if you have "hello %s you are %s years old" % x then x must be a tuple. But if I am the one who designs the API and gets to choose the data types, then what are the guidelines? 回答1: There's a strong culture of tuples being for heterogeneous collections, similar to what you'd use struct s for in C, and lists being for homogeneous collections,

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'm writing unit tests using PowerMock, mocking behaviour of some util classes. Defining behaviour once for test class (by @BeforeClass annotation) causes: first test invocation to return mocked value second test invocation to return real method return value Sample code: import org.junit.Assert; import org.junit.BeforeClass; import org.junit.Test; import org.junit.runner.RunWith; import org.powermock.api.mockito.PowerMockito; import org.powermock.core.classloader.annotations.PrepareForTest; import org.powermock.modules.junit4.PowerMockRunner

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 a model class named Foo that has, among others, these properties. public string StripeRecipientId { get; set; } public override bool HasProvidedBillingInformation { get { // return !string.IsNullOrEmpty(this.StripeRecipientId); return false; } } I have enabled migrations and am using Code First. When I run the update-database commandlet, whether with -Force option is specified or not, I get this error: Column names in each table must be unique. Column name 'StripeRecipientId' in table 'dbo.Foos' is specified more than once. I double

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'm trying to cycle through some table rows. The simplified rows are as follows: <table> <tr id="ucf48"> <td class="ucf_text"> <input name="ucf_t48" value="Ann becomes very involved in the text she is reading." type="text"> </td> </tr> <tr id="ucf351"> <td class="ucf_text"> <input name="ucf_t351" value="Ann is a fast and confident reader." type="text"> </td> </tr> </table> I'm using this code to cycle: $('#ucf tr').each(function(i,obj){ var cn=$(this).attr('id').substr(3); var t=$(this +'.ucf_text input').val(); console.log("Row "+i);

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 trying to use setuptools in python to create an egg package, but I get this weird error: error: each element of 'ext_modules' option must be an Extension instance or 2-tuple How can I fix this? 回答1: Assuming that you already have setuptools installed, Edit setup.py of the egg package target and replace the import setup, Extension in order to get them from setuptools. from setuptools import setup, Extension, Command Rational: setuptools redefines Extension so it's possible that it does not recognize the object that you have in the ext

Find a way Input Output For each test case output the minimum total time that both yifenfei and Merceki to arrival one of KFC.You may sure there is always have a KFC that can let them meet. Sample Input 4 4 Y.#@ .... .#.. @..M 4 4 Y.#@ .... .#.. @#.M 5 5 Y..@. .#... .#... @..M. #...# Sample Output 66 88 66 #include<stdio.h> #include<queue> #include<string.h> #define INF 0x3f3f3f3f /* * 0x3f3f3f3f的十进制是1061109567，是10^9级别的（和0x7fffffff一个数量级）， * 而一般场合下的数据都是小于10^9的，所以它可以作为无穷大使用而不致出现数据大于无穷大的情形。 * 另一方面，由于一般的数据都不会大于10^9，所以当我们把无穷大加上一个数据时， * 它并不会溢出（这就满足了“无穷大加一个有穷的数依然是无穷大”）， * 事实上0x3f3f3f3f+0x3f3f3f3f

https://msdn.microsoft.com/en-us/library/windows/desktop/dd183376(v=vs.85).aspx The BITMAPINFOHEADER structure contains information about the dimensions and color format of a DIB. typedef struct tagBITMAPINFOHEADER { DWORD biSize; LONG biWidth; LONG biHeight; WORD biPlanes; WORD biBitCount; DWORD biCompression; DWORD biSizeImage; LONG biXPelsPerMeter; LONG biYPelsPerMeter; DWORD biClrUsed; DWORD biClrImportant; } BITMAPINFOHEADER, *PBITMAPINFOHEADER; Members biSize The number of bytes required by the structure. biWidth The width of the bitmap, in pixels. If biCompression is BI_JPEG or BI_PNG,