如题

开发环境中我配置了5个，也正常显示5个，但在真机调试和预览中，只显示了4个，中间那个不见了?

在正常页面中，有效果，但在van-popup没有效果 <view class='main_view'>       <div class='befor'></div>       <div class='reason_txt'>入网的理由</div>       <div class='after'></div>     </view> .main_view{   display: flex;   flex-direction: row;   justify-content: space-around;   width: 100%;   height: 60rpx;   margin-top: 100rpx;    } .befor{   width: 200rpx;   height: 1rpx;   background: red!important;   line-height: 60rpx!important; } .after{   width: 200rpx;   height: 1rpx;   background: red!important;   line-height: 60rpx!important; } .reason_txt{   position: relative;   margin-top: -28rpx; } 

[图片] i5的笔记本，硬件差点，但不至于5-6个小时以上一直在编译吧？用到了一个nmp的界面库。这时cpu100%，有时还正常。

[图片][图片] 当后面文本自动换行时，前面图片被压缩？   <block wx:for='{{news_datas}}'>     <view class='news_content'>       <image class="news_content_image" src="{{item.imgurl}}" />       <view class='news_content_right_box'>         <navigator url='../newsdetail/newsdetail?url={{item.url}}'>{{item.title}}</navigator>         <view class='news_content_foot'>           <label class='news_content_foot_lbl'>{{item.date}}</label>           <label class='news_content_foot_lbl'>{{item.dept}}</label>         </view>       </view>     </view>   </block>  .news_content{   display: flex;   width: 100%;   flex-direction: row;   background-color: white;   padding: 10rpx;   margin-top: 10rpx; } .news_content_image{   height: 140rpx;   width:  140rpx; } .news_content_right_box {   display: flex;   flex-direction: column;   flex-grow:1;   padding: 10rpx;   margin-left: 10rpx;   background-color: white; } .news_content_foot{   display: flex;   flex-direction: row-reverse;   margin-top: 20rpx; } .news_content_foot_lbl{   margin-right: 20rpx;   font-size: 30rpx;   color: #3b3b3b; }

用wx.uploadFile上传超过2M的文件时，调试工具显示上传正常，但后台服务器根本没有接到请求。现在拍一个照片经常超过5M，怎么上传？

1，在开发工具下，用测试号连接后台服务器，上传文件正常，上传多少次都正常； 2，在1）的条件下，用真机调试，第一次上传正常，第二次上传，开发工具端输出信息正常，但服务器报错 3，小程序上传到管理平台，用体验版测试，第一次上传正常，第二次以后报错，和2）报错信息一样。后台服务器重启后，又能正常上传一次。 服务端错误信息如下： org.apache.commons.fileupload.FileUploadBase$IOFileUploadException: Processing of multipart/form-data request failed. Stream ended unexpectedly at org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:350) ~[commons-fileupload-1.4.jar!/:1.4] at org.apache.commons.fileupload.servlet.ServletFileUpload.parseRequest(ServletFileUpload.java:113) ~[commons-fileupload-1.4.jar!/:1.4] at com.yingxin.wxbackserver.controller.UploadController.uploadPicture(UploadController.java:55) ~[classes!/:0.0.1-SNAPSHOT] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_171] at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_171] at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:1.8.0_171] at java.lang.reflect.Method.invoke(Unknown Source) ~[na:1.8.0_171] at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190) [spring-web-5.2.4.RELEASE.jar!/:5.2.4.RELEASE] at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) [spring-web-5.2.4.RELEASE.jar!/:5.2.4.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106) [spring-webmvc-5.2.4.RELEASE.jar!/:5.2.4.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:879) [spring-webmvc-5.2.4.RELEASE.jar!/:5.2.4.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:793) [spring-webmvc-5.2.4.RELEASE.jar!/:5.2.4.RELEASE] at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) [spring-webmvc-5.2.4.RELEASE.jar!/:5.2.4.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040) [spring-webmvc-5.2.4.RELEASE.jar!/:5.2.4.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) [spring-webmvc-5.2.4.RELEASE.jar!/:5.2.4.RELEASE] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) [spring-webmvc-5.2.4.RELEASE.jar!/:5.2.4.RELEASE] at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909) [spring-webmvc-5.2.4.RELEASE.jar!/:5.2.4.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:660) [tomcat-embed-core-9.0.31.jar!/:9.0.31] at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) [spring-webmvc-5.2.4.RELEASE.jar!/:5.2.4.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) [tomcat-embed-core-9.0.31.jar!/:9.0.31] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) [tomcat-embed-core-9.0.31.jar!/:9.0.31] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.31.jar!/:9.0.31] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) [tomcat-embed-websocket-9.0.31.jar!/:9.0.31] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.31.jar!/:9.0.31] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.31.jar!/:9.0.31] at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) [spring-web-5.2.4.RELEASE.jar!/:5.2.4.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.2.4.RELEASE.jar!/:5.2.4.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.31.jar!/:9.0.31] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.31.jar!/:9.0.31] at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) [spring-web-5.2.4.RELEASE.jar!/:5.2.4.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.2.4.RELEASE.jar!/:5.2.4.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.31.jar!/:9.0.31] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.31.jar!/:9.0.31] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) [spring-web-5.2.4.RELEASE.jar!/:5.2.4.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) [spring-web-5.2.4.RELEASE.jar!/:5.2.4.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) [tomcat-embed-core-9.0.31.jar!/:9.0.31] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) [tomcat-embed-core-9.0.31.jar!/:9.0.31] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) [tomcat-embed-core-9.0.31.jar!/:9.0.31] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-9.0.31.jar!/:9.0.31] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) [tomcat-embed-core-9.0.31.jar!/:9.0.31] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) [tomcat-embed-core-9.0.31.jar!/:9.0.31] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.31.jar!/:9.0.31] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) [tomcat-embed-core-9.0.31.jar!/:9.0.31] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [tomcat-embed-core-9.0.31.jar!/:9.0.31] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:367) [tomcat-embed-core-9.0.31.jar!/:9.0.31] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) [tomcat-embed-core-9.0.31.jar!/:9.0.31] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) [tomcat-embed-core-9.0.31.jar!/:9.0.31] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1639) [tomcat-embed-core-9.0.31.jar!/:9.0.31] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.31.jar!/:9.0.31] at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [na:1.8.0_171] at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [na:1.8.0_171] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.31.jar!/:9.0.31] at java.lang.Thread.run(Unknown Source) [na:1.8.0_171] Caused by: org.apache.commons.fileupload.MultipartStream$MalformedStreamException: Stream ended unexpectedly at org.apache.commons.fileupload.MultipartStream$ItemInputStream.makeAvailable(MultipartStream.java:1033) ~[commons-fileupload-1.4.jar!/:1.4] at org.apache.commons.fileupload.MultipartStream$ItemInputStream.read(MultipartStream.java:931) ~[commons-fileupload-1.4.jar!/:1.4] at java.io.InputStream.read(Unknown Source) ~[na:1.8.0_171] at org.apache.commons.fileupload.util.Streams.copy(Streams.java:98) ~[commons-fileupload-1.4.jar!/:1.4] at org.apache.commons.fileupload.util.Streams.copy(Streams.java:68) ~[commons-fileupload-1.4.jar!/:1.4] at org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:346) ~[commons-fileupload-1.4.jar!/:1.4] ... 52 common frames omitted

写法1： let arr = this.data.picpaths.splice(index, 1); 写法2： let arr = this.data.picpaths;  arr.splice(index, 1) 代码从数组中删除元素，有区别吗？结果是第一中写法，当数组中仅剩一个元素时，无法删除！

剪头函数： OnfinishTakeOnePic:(filepath)=>{     const eventChannel = this.getOpenerEventChannel()     eventChannel.emit('takeOnePictureFinished', {       filepath: filepath     });     wx.navigateBack();   } //传统写法： OnfinishTakeOnePic:function(filepath){     const eventChannel = this.getOpenerEventChannel()     eventChannel.emit('takeOnePictureFinished', {       filepath: filepath     });     wx.navigateBack();   } 剪头函数写法this指针为undefined,啥情况？？

以前公众号有，难不成进行“微信认证”，需要注册微信号，再注册公众号，再进行认证，然后绑定小程序？