append

问题 I am trying to use numpy.append but something goes wrong and it just doesn't make sence to me anymore. Can someone explain why I am getting an error? >>> np.array([[], [], []]).shape (3, 0) >>> a=[[], [], []] >>> a[1].append(3) >>> a [[], [3], []] >>> b=np.array(a) >>> b[0].append(3) array([[3], [3], []], dtype=object) This is all logical to me, yet when I try the following it stops working. >>> c=np.array((3,0),dtype=object) >>> c[0].append(3) AttributeError: 'int' object has no attribute

问题 I have this html: <div id="wrapper"> <div class="inner">Inner</div> <div class="inner">Inner</div> <div class="inner">Inner</div> </div> I want to append this line <div id="first">first</div> between the div#wrapper and the first div.inner - so it will always be the first element even if there are no elements. so it will look like this: <div id="wrapper"> <div id="first">first</div> <div class="inner">Inner</div> <div class="inner">Inner</div> <div class="inner">Inner</div> </div> or in case

问题 I have an unordered list: Html: <ul id="blogs"> <li> <a class="vimg" href="/blogs/news/6875583-hurricane-sandy"> <img src="mydomainvideo_icons.jpg?1542"> </a> </li> <a href="/blogs/news/6875583-hurricane-sandy"> <strong class="titlen">Hurricane Sandy</strong> <p class="newsp">lorem ispum lorem ispumu...</p> </a> <a class="readp" href="/blogs/news/hurricane-sandy">Read More</a> <li></li> <li></li> </ul> I would like to alter the html above with jQuery, so the output would be the following: <ul

问题 This question is a fork from: multiprocessing/threading: data appending & output return I more or less have the same "run" function below, except that instead of appending a Plotly trace object, I am appending the x, y, and z vectors that I will process afterward. The contents of "run" will create random (for argument's sake) x, y, and z vectors (random lengths AND elements) that are to be appended to the input array. def run(N, data_test): for running in range N: ... data_test.append([x_vec,

问题 I have a csv called test.csv that looks like: accuracy threshold trainingLabels abc 0.506 15000 eew 18.12 15000 And then a dataframe called summaryDF that looks like: accuracy threshold trainingLabels def 0.116 342 dja 0.121 1271 I am doing: try: if os.stat('test.csv').st_size > 0: summaryDF.to_csv(path_or_buf=f, encoding='utf-8', mode='a', header=False) f.close() else: print "empty file" with open('test.csv', 'w+') as f: summaryDF.to_csv(path_or_buf=f, encoding='utf-8') f.close() except

问题 Hi all, I have a small script that appends a list of input values along with their names into a textarea. What I'd like to do is hide the field name when the value is 0 or empty . Here's the script: <script> function showValues() { var fields = $(".content :input").serializeArray(); $("#contentlist_copy").empty(); jQuery.each(fields, function(i, field){ $("#contentlist_copy").append(field.value + " " + field.name + ", "); }); } $("input").change(showValues); showValues(); </script> I know it

问题 I am making a java application which uses a total of 4 classes, Main , Form1 , Form2 and ZBC . I am trying to append the JTextArea that is on Form2 through some code in the ZBC class. The first problem is when trying to append the JTextArea I get an error because the JTextarea is not static - I also get an error if I change the JTextArea to static . I am trying to append the textbox using Form2.jtaConsole.append("TEST"); as this is how i've done it previously. is there any way I can append

问题 Trying to clone base element li.table-field-base to variable clonedItem , change some attributes and data on the new element and then append it to sortable list ul#tablefield-order-sortable . The result is that the element is appended, but the base element is removed, though i did copy it first. How could i keep the base element, so i can use it later again? Following is the piece of relevant code that does the copying/appending part: var clonedItem = $.extend({}, $('li.table-field-base')); $

问题 I'm trying to dynamically create 100 li's and append a "template" of html inside of each one. On top of that, I want to dynamically increment the id="Increment" span element by 1 inside that template like... 1, 2, 3 ---> 100 Desired Effect: http://jsfiddle.net/LQp5y/ Current Work: http://jsfiddle.net/QyWS7/ HTML Markup: <section class="main"> <div class="wrapper"> <ul id="currentStore" class="row"> <!-- HTML TEMPLATE --> </ul> </div> </section> HTML Template: <!-- 100 li's --> <li> <div class

问题 I have a div and it has a scroll bar here is the code I've used: <div style="width: 200px; height: 250px; overflow: scroll; overflow-x: hidden; -ms-overflow-x: hidden;" id="container"></div> There will be more text added to the div but when the div does expand how can I have the vertical scroll bar remain at the bottom of the bar so the user can see the appended text? 回答1: You should set the scrollTop to scrollHeight , e.g.: http://jsfiddle.net/fAK2L/1/. var div = $('div'); div.scrollTop( div