label

Passing block to label helper in rails3

爱⌒轻易说出口 提交于 2019-12-19 07:55:25
问题 I want to create label tag with some nested elements. I am using label helper and trying to pass inner html as block but generated HTML doesn't look as I expected. ERB: <span>Span element</span> <%= label("object", "method") do %> <span>Inner span</span> <% end %> HTML output: <span>Span element</span> <span>Inner span</span> <label for="object_method"> <span>Span element</span> <span>Inner span</span> </label> When I pass inner html using <% %> markups output is as it should be: ERB: <span

jQuery插件-validation plugin

≡放荡痞女 提交于 2019-12-19 07:50:41
rules里面的username和password是input的name,不是id validate()方法 debug:true,可以调试,不提交表单 remote:远程校验,例如查看用户名是否存在 rangelength:[2,10], dateISO: 格式yyyy/mm/dd,/或者-分隔 equalTo: 例如确认密码的时候使用 label 里面的for属性规定label与哪个表单元素绑定 valid()方法:检查表单或元素是否有效 rules()针对元素获取校验规则 在控制台需要shift+回车才可以换行 静态方法,不需要定义变量可以直接使用 addClassRules:给class添加rules, 可以批量添加,方便 serialize() 方法通过序列化表单值,创建 URL 编码文本字符串。 $("form").serialize() rules里面有个depends属性,只有depends 属性为true,才进行校验。 this.optional(element):没有数值可以不验证 来源: https://www.cnblogs.com/fancychen/p/6856507.html

机器学习---K最近邻(k-Nearest Neighbour,KNN)分类算法

早过忘川 提交于 2019-12-19 07:00:08
K最近邻(k-Nearest Neighbour,KNN)分类算法 1.K最近邻(k-Nearest Neighbour,KNN)    K最近邻(k-Nearest Neighbour,KNN)分类算法,是一个理论上比较成熟的方法,也是最简单的机器学习算法之一。该方法的思路是:如果一个样本在特征空间中的k个最相似(即特征空间中最邻近)的样本中的大多数属于某一个类别,则该样本也属于这个类别。用官方的话来说,所谓K近邻算法,即是给定一个训练数据集,对新的输入实例,在训练数据集中找到与该实例最邻近的K个实例(也就是上面所说的K个邻居), 这K个实例的多数属于某个类,就把该输入实例分类到这个类中。 2.算法原理       如上图所示,有两类不同的样本数据,分别用蓝色的小正方形和红色的小三角形表示,而图正中间的那个绿色的圆所标示的数据则是待分类的数据。也就是说,现在, 我们不知道中间那个绿色的数据是从属于哪一类(蓝色小正方形or红色小三角形),下面,我们就要解决这个问题:给这个绿色的圆分类。   我们常说,物以类聚,人以群分,判别一个人是一个什么样品质特征的人,常常可以从他/她身边的朋友入手,所谓观其友,而识其人。我们不是要判别上图中那个绿色的圆是属于哪一类数据么,好说,从它的邻居下手。但一次性看多少个邻居呢?从上图中,你还能看到: 如果K=3

C# in Async Task change Label Text

主宰稳场 提交于 2019-12-19 04:10:52
问题 The following Code does not change the Text and stops executing the Task private void button1_Click(object sender, EventArgs e) { label1.Text = "Test"; Task.Run(() => MyAsyncMethod()); } public async Task MyAsyncMethod() { label1.Text = ""; //everything from here on will not be executed } would be really handy if you could use async together with the UI 回答1: for accessing a GUI control through a second thread you need to invoke. following example shows how to set a label's text properly

吴裕雄--天生自然 pythonTensorFlow图形数据处理:读取MNIST手写图片数据写入的TFRecord文件

送分小仙女□ 提交于 2019-12-19 02:38:39
import numpy as np import tensorflow as tf from tensorflow.examples.tutorials.mnist import input_data # 读取文件。 filename_queue = tf.train.string_input_producer(["F:\\output.tfrecords"]) reader = tf.TFRecordReader() _,serialized_example = reader.read(filename_queue) # 解析读取的样例。 features = tf.parse_single_example(serialized_example,features={'image_raw':tf.FixedLenFeature([],tf.string),'pixels':tf.FixedLenFeature([],tf.int64),'label':tf.FixedLenFeature([],tf.int64)}) images = tf.decode_raw(features['image_raw'],tf.uint8) labels = tf.cast(features['label'],tf.int32) pixels = tf.cast(features['pixels

How do I make text labels scale the font size with different Apple product screens?

痴心易碎 提交于 2019-12-19 02:28:07
问题 This is for ios dev with swift. I have a very simplistic layout: link1 (not enough rep to actually post the pic) All I'm trying to do is make sure that "results" label scales to roughly the same proportion for each different screen size. As you can see below, the difference is extremely noticeable between a 3.5 screen and an iPad screen: link2 So I want to make the label on the iPad screen big enough to take up the same percentage of space as it does on the 3.5 screen, both vertically and

jQuery.validator的非空验证 唯一性验证

倖福魔咒の 提交于 2019-12-19 02:14:04
<!--editpanl start--> <div class="modal fade" id="editpanl" data-backdrop="static"> <div class="modal-dialog"> <div class="modal-content"> <div class="modal-header"> <button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button> <h4 class="modal-title">xxxxxxxxxx</h4> </div> <form role="form" id="form1" method="post" class="validate formvalidate"> <div class="modal-body"> <div class="form-group" style="margin: 0 auto; background-color: #F2F8FE;border: 1px solid #CCE5FF;padding: 0 10px 10px 10px;"> <h3 style="color: #4BA9E9;font-weight: bold;font-size: 14px;">温馨提示:</h3>

基础HTML: label标签的for属性

耗尽温柔 提交于 2019-12-18 19:58:29
转载,高手飘过。。。 说来羞煞人:我一直没搞懂label与一个span标签有什么不同,貌似显示方式及作用都一样的。刚才发现,其实label标签最大的不同就在于他的for属性。 label标签通常是写在表单(form)内的,他与一个普通的span最大的不同,就是 可以和表单元素配对 ,比如文本框,单选框,复选框。而配对的方法,就是通过label的for属性。 比如 < input type = "text" name = "" id = "text" /> < label for = "text" > 一个label,配文本框 </ label > < br /> < input id = "User3" type = "radio" name = "gender" value = "3" > < span for = "User3" > 一个span </ span > < label for = "User3" > label配radio </ label > 测试以上代码,你会发现点击“配文本框”的label时,它前面的input:text标签获得焦点了(可输入)!而点击“配radio”时,它前面的单选框radio就被选中了;但点击“一个span”时,单选框不会有什么反应,虽然它们离得更近。 这些只是因为label的for属性。它为label指定了一个目标

C# Label Text Not Updating

…衆ロ難τιáo~ 提交于 2019-12-18 19:08:59
问题 I have the following code: private void button1_Click(object sender, EventArgs e) { var answer = MessageBox.Show( "Do you wish to submit checked items to the ACH bank? \r\n\r\nOnly the items that are checked and have the status 'Entered' will be submitted.", "Submit", MessageBoxButtons.YesNoCancel, MessageBoxIcon.Question, MessageBoxDefaultButton.Button1); if (answer != DialogResult.Yes) return; button1.Enabled = false; progressBar1.Maximum = dataGridView1.Rows.Count; progressBar1.Minimum = 0

Text On each bar of a stacked bar chart d3.js

我们两清 提交于 2019-12-18 17:01:32
问题 I would like to have some text in each bar of a stacked bar in stacked bar chart provided in d3.js library. Thanks for your help. I have customized the example here link but I have not changed anything else in the javascript code and here is the result 回答1: Here is the important piece of code: state.selectAll("rect") .data(function(d) { return d.ages; }) .enter().append("rect") .attr("width", x.rangeBand()) .attr("y", function(d) { return y(d.y1); }) .attr("height", function(d) { return y(d