label | 易学教程

How can I implement a gmail-style label chooser?

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问题 What's the easiest way to implement (something like) Gmail's interface for labeling messages? Does any javascript library have a widget like this? http://img294.imageshack.us/img294/7097/36698396.png Behavior: Click a label in the dropdown to immediately label the message. Check multiple labels and then "Apply" to add multiple labels (not sure I like the "Apply" requirement...) Type in the box to narrow down your list of labels. If you narrow it down to 1, pressing enter applies that label.

行/块级元素的文本居中

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1.问题引入：为什么样式对文本位置没有起任何作用？加上display: table-cell; 就可？ <label id="lb-file-choose">Choose images to upload (PNG, JPG)</label> 样式 #lb-file-choose{ width:600px; height: 100px; text-align:center; background:#9d9dd3; vertical-align:middle; } 2.原因： DOM 中的元素内元素和块级元素。样式中有的元素属性只能用于块级元素，有的用于行内元素。text-align 用于块级元素行内元素（a,b,br,em,font,i,img,input,label,select,small,span,strike,strong）： a.不占据整行，随内容而定：不可以设置宽高，也不可设置行高 b.内联元素可以设置外边界，但是对外边界的上下不起作用，只对左右起作用也可以设置内边界，但是内边界ie6 也不对上下作用，只能对左右作用扩展： *1.行内元素是有盒子模型的，但是margin,padding对应的bottom,top是无效的对行内元素，但是left or right 是有效的 *2.vertical-align用于行内元素中的垂直居中，文字在层(块级元素

Can qgraph render edge labels outside the actual edge?

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I'm trying to insert edge labels outside the actual edge in my qgraph for readability purposes. I particularly don't like the option of include a white bg below the label, it screws up the edge. According to the manual, it is possible to adjust edge label position only along the line, but not on the side. Did anyone struggle with this before? Is it possible to circumvent this issue? Cheers There does not seem to be a parameter for adjusting the across axis location of the edge label. One solution is to add the edge labels to the plot separately. An example is given below, which yielded the

HTML表单里的Label标签

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在Dreamweaver中，只要一加入表单或表单对象，文本框等等，就会在代码中加入一个<label></label>，一直没明白这个label是做什么的，今天正好看到了解释： Label 中有两个属性是非常有用的,一个是FOR、另外一个就是ACCESSKEY了。 FOR属性功能：表示Label标签要绑定的HTML元素，你点击这个标签的时候，所绑定的元素将获取焦点。用法：<Label FOR="InputBox">姓名</Label><input ID="InputBox" type="text"> ACCESSKEY属性：功能：表示访问Label标签所绑定的元素的热键，当您按下热键，所绑定的元素将获取焦点。用法：<Label FOR="InputBox" ACCESSKEY＝"N">姓名</Label><input ID="InputBox" type="text"> 局限性：accessKey属性所设置的快捷键不能与浏览器的快捷键冲突，否则将优先激活浏览器的快捷键。注释要将 LABEL 绑定到其它的控件，请将 LABEL 元素的 FOR 属性设置为与该控件的 ID 相同。将 LABEL 绑定到控件的 NAME 属性毫无用处。但是，要提交表单，你必须为 LABEL 元素所绑定到的控件指定NAME。有两种方法给所指定的快捷键添加下划线。LABEL 元素的 rich

SpringBoot---web开发

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1、简介使用SpringBoot； 1）、创建SpringBoot应用，选中我们需要的模块； 2）、SpringBoot已经默认将这些场景配置好了，只需要在配置文件中指定少量配置就可以运行起来 3）、自己编写业务代码；自动配置原理？这个场景SpringBoot帮我们配置了什么？能不能修改？能修改哪些配置？能不能扩展？xxx xxxxAutoConfiguration：帮我们给容器中自动配置组件； xxxxProperties:配置类来封装配置文件的内容； 2、SpringBoot对静态资源的映射规则 @ConfigurationProperties(prefix = "spring.resources", ignoreUnknownFields = false) public class ResourceProperties implements ResourceLoaderAware { //可以设置和静态资源有关的参数，缓存时间等 WebMvcAuotConfiguration： @Override public void addResourceHandlers(ResourceHandlerRegistry registry) { if (!this.resourceProperties.isAddMappings()) { logger.debug("Default

HTML复选框checkbox默认样式修改

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此方法可以将复选框的默认样式替换成任意样式。如图：未选择：选择时：思路：将复选框隐藏，利用lebal元素的焦点传递特性，用lebal的样式替代复选框。代码如下： <!DOCTYPE html> < html > < head > < meta charset = "UTF-8" > < title > checkbox css change </ title > < style type = "text/css" > input [type="checkbox"] + label { cursor : pointer ; font-size : 1 em ; } [id^="checkbox-"] + label { background-color : #ffffff ; border : 1 px solid #666666 ; box-shadow : 0 1 px 2 px rgba( 0 , 0 , 0 , 0.05 ) , inset 0 px - 15 px 10 px - 12 px rgba( 0 , 0 , 0 , 0.05 ) ; padding : 9 px ; border-radius : 3 px ; display : inline-block ; vertical-align : middle ; } [id^="checkbox-"] +

Html中使用自定义图片来实现checkbox显示

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如果需要使用图片来实现checkbox的使用，可以使用来实现，实现原理是将label表签代替checkbox的显示，将checkbox的display设置为none,在label标签中使用要显示的图片img，再使用js函数去控制图片的选中与否的切换。 < label for = "agree" > < img class = "checkbox" alt = "选中" src = "../img/checked.png" id = "checkimg" onclick = "checkclick();" > </ label > < input type = "checkbox" style = "display:none" id = "agree" checked = "checked" > < script > function checkclick () { var checkimg = document.getElementById( "checkimg" ); if ($( "#agree" ).is( ':checked' ) ){ $( "#agree" ).attr( "checked" , "unchecked" ); checkimg.src= "../img/unchecked.png" ; checkimg.alt= "未选" ; } else { $(

ggplot2: Add label on barplot if position = “fill”

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I would like to add %-figures on a filled barplot. Here is the plot with the labels at the wrong places: Here is the dataframe: x0 <- expand.grid(grp = c("G1","G2") , treat = c("T1","T2") , out = c("out1","out2","out3","out4") ) set.seed(1234) x0$n <- round(runif(16,0,1)*100,0) head(x0) grp treat out n 1 G1 T1 out1 11 2 G2 T1 out1 62 3 G1 T2 out1 61 4 G2 T2 out1 62 5 G1 T1 out2 86 6 G2 T1 out2 64 Now, I add the sum within grp/treat to the dataframe (using sql, sorry!): x0 <- sqldf(paste("SELECT a.*, (SELECT SUM(n)" ," FROM x0 b" ," WHERE a.grp = b.grp" ," AND a.treat = b.treat" ," ) tot" ,"

How to align text vertically on a node within a Sankey diagram (D3.JS)?

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问题 I have modified Mike Bostok example of a Sankey diagram in D3.Js from http://bost.ocks.org/mike/sankey/ to display the value of each node as this: Sankey http://uweb.cs.uvic.ca/~maleh2/sankey.png node.append("text") .attr("class","nodeValue"); ///align vertically?? node.selectAll("text.nodeValue") .attr("x", sankey.nodeWidth() / 2) .attr("y", function (d) { return (d.dy / 2) }) .text(function (d) { return formatNumber(d.value); }) .attr("text-anchor", "middle"); //.attr("transform", "rotate(

how to display different images using grid function using tkinter?

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问题 I want to display the images in the folder using grid() . But when I tried with the following code, I got the output with single image iterated. My code: def messageWindow(): win = Toplevel() path = 'C:\Users\HP\Desktop\dataset' for r in range(7): for c in range(10): for infile in glob.glob(os.path.join(path,'*.jpg')): im = Image.open(infile) resized = im.resize((100, 100),Image.ANTIALIAS) tkimage = ImageTk.PhotoImage(resized) myvar=Label(win,image = tkimage) myvar.image = tkimage myvar.grid

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