如何使用jquery将某个值正确加载到文本框中?尝试下面的那个[object Object],但我得到了输出.请赐教我,我是jquery的新手.
proc = function(x, y) {
var str1 = $('#pid').value;
var str2 = $('#qtytobuy').value;
var str3 = $('#subtotal').load('compz.php?prodid=' + x + '&qbuys=' + y);
$('#subtotal').val(str3);
}Run Code Online (Sandbox Code Playgroud)
这是html表单:
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<form name="yoh" method="get">
Product id: <input type="text" name="pid" value=""><br/>
Quantity to buy:<input type="text" name="qtytobuy" value="" onkeyup="proc(document.yoh.pid.value, this.value);"></br>
Subtotal:<input type="text" name="subtotal" id="subtotal" value=""></br>
<div id="compz"></div>
</form>Run Code Online (Sandbox Code Playgroud) 我的应用程序中的" 外部分配对于此过程而言太大 "错误.很多这些:
11-16 10:56:59.230: ERROR/dalvikvm-heap(2875): 1303680-byte external allocation too large for this process.
11-16 10:56:59.230: ERROR/GraphicsJNI(2875): VM won't let us allocate 1303680 bytes
11-16 10:56:59.230: ERROR/dalvikvm-heap(2875): 1536000-byte external allocation too large for this process.
11-16 10:56:59.230: ERROR/GraphicsJNI(2875): VM won't let us allocate 1536000 bytes
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在加载大位图后,看起来它们是在渲染布局时生成的.但是,在解码位图时不会产生错误.
我该如何调试这些错误?任何额外的指针?
我正在开发一个增强现实iOS应用程序(iPhone/iPad/iPod),我想有一个支持此功能的设备列表.我的意思是指南针和地磁场,这样我就可以在所有自由度下获得设备的方向.
谢谢!
关于xcode中Array的快速问题.我有以下代码,它应该通过php和JSON获得的字符串数组,并将这些字符串转换为自定义对象,字符串作为对象的ivars然后将该对象添加到新数组:
for (int i = 0; i<[list count]; i++) {
Article *article = [[Article alloc] init]; //creates custom object
article.uid = [[list objectAtIndex:i] objectAtIndex:0];
article.title = [[list objectAtIndex:i] objectAtIndex:1]; //adds string as ivars
article.description = [[list objectAtIndex:i] objectAtIndex:2];
articleArray = [[NSMutableArray alloc] init]; //inits the new array
[articleArray addObject:article]; //should add the object but seems to fail
[article release]; //releases the object
NSLog(@"%@", article.description);
}
NSLog(@"%d", [articleArray count]);
NSLog([articleArray description]);
}
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代码确实使用NSLog(@"%@", article.description);但不是新数组的正确长度返回正确的值,它只向数组添加一个值,这是article.description的字符串,这对我没有意义.list数组包含2个元素,每个元素都是包含字符串的数组.
我正在使用BinaryFormatter将类实例数组序列化为文件.我可以在同一个应用程序中反序列化这个罚款.当我在不同的应用程序中尝试相同的反序列化(拉入一个执行工作的公共文件)时,我收到以下错误:
{"Could not load file or assembly 'pmlscan, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The module was expected to contain an assembly manifest."}
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其中pmlscan是原始应用程序的名称.如何让BinaryFormatter不尝试加载pmlscan?
python docs中的iter函数示例:
with open("mydata.txt") as fp:
for line in iter(fp.readline):
print line
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给我这个:
Traceback (most recent call last):
File "<stdin>", line 2, in <module>
TypeError: 'builtin_function_or_method' object is not iterable
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怎么可能?(Python 2.6.4)
我正在尝试在列表环境中创建对齐点.下面的代码给了我一个错误,但它几乎编译成我想要的,只是错过了要点.我必须误解对齐和/或表格以及它们如何与换行符一起使用.指导赞赏!
\documentclass{beamer}
\begin{document}
\begin{frame}
\frametitle{Title}
\begin{itemize}
\begin{tabular}{ll}
\item Topic Apple: &Something to say about it \\
\item Topic Watermelons: &Something different
\end{tabular}
\end{itemize}
\end{frame}
\end{document}
Run Code Online (Sandbox Code Playgroud) 我的代码中有这个:
double** desc = new double* [size_out];
for (int i = 0; i < size_out; i++)
desc[i] = new double [size_in];
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我该如何删除desc?
我应该这样做:
delete [] desc;
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要么
for (int i=0; i<size_out; i++)
delete [] desc[i];
delete [] desc;
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要么
for (int i=0; i<size_out; i++)
delete [] desc[i];
delete desc;
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?
我喜欢1.0、1.1、1.2分支,并且我希望进入1.0的每个提交都自动进入1.1和1.2,并且对1.1的每个提交都自动进入1.2
是否可以在单个事务中自动完成所有这些操作?有人可以告诉我如何吗?(可以举个例子吗?)
我正在尝试使用GWT创建示例应用程序,我的代码如下
public void onModuleLoad() {
VerticalPanel panel = new VerticalPanel();
MultiWordSuggestOracle oracle = new MultiWordSuggestOracle();
database data=new database();
Statement s1;
try {
s1 = data.conn.createStatement();
s1.executeQuery ("SELECT * FROM details LIMIT 10");
ResultSet rs = s1.getResultSet ();
while (rs.next ())
{
String name = rs.getString ("name");
oracle.add(name);
}
} catch (SQLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
SuggestBox suggestbox = new SuggestBox(oracle);
panel.add(new Label("Enter Country"));
panel.add(suggestbox);
panel.addStyleName("demo-panel-padded");
RootPanel.get("demo").add(panel);
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我已经添加了mysql-bin.jar连接器war/WEB_INF/lib/,现在我收到了编译错误
17:39:52.353 [ERROR] [a] Line 28: No …Run Code Online (Sandbox Code Playgroud)