小编use*_*846的帖子

问题

尝试获取特定动画,其中有两个环从图像上的形状波纹/辐射.我找不到精确的动画

Codepen链接

这就是我到目前为止所拥有的

这就是我的想法它粗略的绘图,但它给你一个想法.我希望戒指在我的编码器中围绕叶子圆圈而不是整个圆圈涟漪.它会在悬停时停止动画,圆圈会随着文本内部扩展.

码

HTML

  <div id="tree-wrapper">
 <img class="tree" <div><img class="tree" title="source: imgur.com" src="http://i.imgur.com/1dDCOyq.png" alt="" />
    <div class="ripple"></div>
  <div class="circle-top-left" unselectable="yes" onselectstart="return false;">

      <div class="circle__wrapper">
        <div class="circle__content">    
          <p class="para"><u>Training</u><br />Personal, Corporate
          </p>  
          <span></span>
        </div>
      </div>
  </div>
 </a>
 <div class="circle-top-right" unselectable="yes" onselectstart="return false;">
      <div class="circle__wrapper">
        <div class="circle__content">    
          <p class="para"><u>Consulting</u><br />Project, Organization
          </p>  
          <span></span>
        </div>
      </div>
  </div>
 </a>
  <div class="circle-bot-right" unselectable="yes" onselectstart="return false;">
    <a class href="http://veddma.net/our-services/accreditation">
      <div class="circle__wrapper">
        <div class="circle__content">    
          <p class="para"><u>Accreditation</u><br />Professional Management Architects
          </p>  
          <span></span>
        </div>
      </div> …

我已经看到了在类组件中声明方法的两种方法React

方法一

class someComp extends React.Component  {  
    handleResetShapes = (e) => {
        e.preventDefault();
        this.setState({state: 'try'});
    }

    render() {}
}

方法二

class someComp extends React.Component  {  
    handleResetShapes(e) {
        e.preventDefault();
        this.setState({state: 'try'});
    }

    render() {}
}

在那个特定的例子中Method 1有效，而另一个则无效。不过，我已经看到声明为的方法Method 2并且它工作正常，只是现在无法提供示例。

问题

有什么区别？这个 Javascript 概念叫什么？

我想取一个整数并以数字显示它,无论值是多少,例如Int = 1将显示为001.否则整数永远不会超过3位数.它可能很简单,我只是错过了明显的.

CStr(Format(Int, 000)

我将结果连接成一个字符串.谢谢

JSTL 新手，并一直试图在 JSTL 中小写一个变量。我试过这个

<c:set value="${fn:toLowerCase(confirmedStatus)}" />

并添加了标签库

<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %>

其中confirmedStatus 是一个枚举变量。

这是错误

    Caused by: javax.servlet.jsp.JspTagException
        at org.apache.taglibs.standard.tag.common.core.SetSupport.doEndTag(SetSupport.java:245)
        at org.apache.jsp.WEB_002dINF.views.tiles.clientOrder_jsp._jspx_meth_c_set_0(clientOrder_jsp.java:599)
        at org.apache.jsp.WEB_002dINF.views.tiles.clientOrder_jsp._jspx_meth_c_when_1(clientOrder_jsp.java:561)
        at org.apache.jsp.WEB_002dINF.views.tiles.clientOrder_jsp._jspx_meth_c_choose_1(clientOrder_jsp.java:516)
        at org.apache.jsp.WEB_002dINF.views.tiles.clientOrder_jsp._jspx_meth_c_when_0(clientOrder_jsp.java:486)
        at org.apache.jsp.WEB_002dINF.views.tiles.clientOrder_jsp._jspx_meth_c_choose_0(clientOrder_jsp.java:452)
        at org.apache.jsp.WEB_002dINF.views.tiles.clientOrder_jsp._jspx_meth_c_forEach_0(clientOrder_jsp.java:389)
        at org.apache.jsp.WEB_002dINF.views.tiles.clientOrder_jsp._jspService(clientOrder_jsp.java:154)
        at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:111)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
        at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:403)
        at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:492)
        at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:378)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
        at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:558)
        at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:489)
        at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:119)
        at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:520)
        at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:233)
        at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:972)
        at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:417)
        at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:192)
        at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:906)
        at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
        at org.eclipse.jetty.server.Dispatcher.include(Dispatcher.java:178)
        at org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.java:1015)
        at org.apache.jasper.runtime.PageContextImpl.include(PageContextImpl.java:700)
        at org.apache.tiles.jsp.context.JspTilesRequestContext.include(JspTilesRequestContext.java:103)