小编el.*_*ero的帖子

我想计算一些RGB colors (0 - 255)的0,以1规模.有谁知道在线转换器或它存在数学公式？

假设我想将125 RGB(0到255比例)转换为0到1比例.

有没有办法找到Google表格的当前回复(以编程方式)？

在onSubmit功能.

看着他们的文档,但我必须提供respondId.

我怎么找到的respondId？

他们的一个剪切代码是:

// Open a form by ID and log the responses to each question.
 var form = FormApp.openById('1234567890abcdefghijklmnopqrstuvwxyz');
 var formResponses = form.getResponses();
 for (var i = 0; i < formResponses.length; i++) {
   var formResponse = formResponses[i];
   var itemResponses = formResponse.getItemResponses();
   for (var j = 0; j < itemResponses.length; j++) {
     var itemResponse = itemResponses[j];
     Logger.log('Response #%s to the question "%s" was "%s"',
         (i + 1).toString(),
         itemResponse.getItem().getTitle(),
         itemResponse.getResponse());
   } …

根据Steffen的帖子,这是BOOL在cocos2d中生成随机s 的有效方法

+(BOOL) getYesOrNo
{
   return (CCRANDOM_0_1() < 0.5f);
}

但是我该如何为此设置范围？(例如0 - 29是间隔,5个BOOL = NO,25个BOOL = YES)

现在我以这种方式设置模态jQuery窗口的位置:

   var winH = $(window).height();
   var winW = $(window).width();
    //Set the popup window to center
    $(id).css('top',  winH/2-$(id).height()/2);
    $(id).css('left', winW/2-$(id).width()/2);

当我向下滚动时如何使popUp居中？

在尝试使用RaspberryPi上安装的RPi python模块时,在我的views.py中的一个请求定义中使用它我得到

Module not imported correctly!

这是我得到的追溯.请注意,我使用此回购作为起点.

在Django中安装RPi并正确使用它的正确方法是什么？我需要RPi,因为我的运动传感器,使用本教程作为运动传感器的起点,但想将它集成到django视图(页面)

我正在使用respond.js(该库为+1),我得到了对象的以下函数并出错:

translate = function (styles, href, media) {
    // here I got 'undefined' error in IE 8
    var qs = styles.match(/@media[^\{]+\{([^\{\}]*\{[^\}\{]*\})+/gi),
        ql = qs && qs.length || 0;

    //try to get CSS path
    href = href.substring(0, href.lastIndexOf("/"));

    var repUrls = function (css) {
        return css.replace(/(url\()['"]?([^\/\)'"][^:\)'"]+)['"]?(\))/g, "$1" + href + "$2$3");
    },
    useMedia = !ql && media;

    //if path exists, tack on trailing slash
    if (href.length) {
        href += "/";
    }

    //if no internal queries exist, but media attr …

我在UIButton这里以编程方式自定义:

button = [UIButton buttonWithType:UIButtonTypeCustom];
        [button setSelected:YES];
        button.frame = CGRectMake(x, y, width, height);
        [button setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
        [button setTitleColor:[UIColor blueColor] forState:UIControlStateSelected];
        [button setTitle:@"Button Title" forState:UIControlStateNormal];
        [button addTarget:self action:@selector(buttonAction:) forControlEvents:UIControlEventTouchUpInside];
        [button setBackgroundImage:[UIImage imageNamed:@"button.png"] forState:UIControlStateNormal];
        [button setBackgroundImage:[UIImage imageNamed:@"buttonActive.png"] forState:UIControlStateSelected];
        [button setBackgroundImage:[UIImage imageNamed:@"buttonActive.png"] forState:UIControlStateHighlighted];
        [button setBackgroundImage:[UIImage imageNamed:@"buttonActive.png"] forState:UIControlStateDisabled];

问题是,如果我按住图像背景图像消失,直到我发布它...

在尝试对我的应用程序进行推送测试时,我收到以下错误:

Traceback (most recent call last):
  File "test.py", line 16, in <module>
    wrapper.notify()
  File "/usr/local/lib/python2.7/dist-packages/APNSWrapper-0.6.1-py2.7.egg/APNSWrapper/notifications.py", line 194, in notify
    apnsConnection.connect(apnsHost, self.apnsPort)
  File "/usr/local/lib/python2.7/dist-packages/APNSWrapper-0.6.1-py2.7.egg/APNSWrapper/connection.py", line 215, in connect
    self.context().connect(host, port)
  File "/usr/local/lib/python2.7/dist-packages/APNSWrapper-0.6.1-py2.7.egg/APNSWrapper/connection.py", line 161, in connect
    self.connectionContext.connect((host, port))
  File "/usr/lib/python2.7/ssl.py", line 331, in connect
    self._real_connect(addr, False)
  File "/usr/lib/python2.7/ssl.py", line 314, in _real_connect
    self.ca_certs, self.ciphers)
ssl.SSLError: [Errno 336445449] _ssl.c:365: error:140DC009:SSL routines:SSL_CTX_use_certificate_chain_file:PEM lib

我的脚本看起来像:

#!/usr/bin/env python
from APNSWrapper import *

deviceToken = '****************************************************************'

# create wrapper
wrapper = APNSNotificationWrapper('cert.pem', True)

# create message …

我正在尝试实现" 快速生效 ",但无法使其正常工作,是否存在我做错的事情？

子类化UICollectionViewFlowLayout和覆盖targetContentOffsetForProposedContentOffset函数:

override func targetContentOffsetForProposedContentOffset(proposedContentOffset: CGPoint, withScrollingVelocity velocity: CGPoint) -> CGPoint {

    var offsetAdjustment:CGFloat = CGFloat(MAXFLOAT)
    let verticalCenter:CGFloat = proposedContentOffset.y + (CGRectGetHeight(self.collectionView!.bounds) / 2.0)
    let proposedRect:CGRect = CGRectMake(proposedContentOffset.x,0.0,self.collectionView!.bounds.size.width,self.collectionView!.bounds.size.height)

    let array:NSArray = self.layoutAttributesForElementsInRect(proposedRect)!

    for layoutAttributes : AnyObject in array {

        if let _layoutAttributes = layoutAttributes as? UICollectionViewLayoutAttributes {

            if _layoutAttributes.representedElementCategory != UICollectionElementCategory.Cell {
                continue
            }

            let itemVerticalCenter:CGFloat = layoutAttributes.center.y

            let _verticalCenter = fabsf(Float(itemVerticalCenter) - Float(verticalCenter))
            let _offsetAdjustment = fabsf(Float(offsetAdjustment))

            if (_verticalCenter < _offsetAdjustment) {
                offsetAdjustment …

你怎么允许使用输入ng-pattern只:letters,numbers,dot,underscore和dash ( . _ -)？

已经尝试了以下几个

更新:

$scope.validationPattern = '/^[a-zA-Z\d\-\_]+$/';

<input ng-model="model" type="text" ng-pattern="{{validationPattern}}" />