delphi的错误该怎么改(急>_<!!)
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我写的程序会出现
Operator not applicable to this operand type
这种错误
代码如下:
b2:longint;
a1:longint;
mxc:Pointer;
mxc:=GetProcAddress(LoadLibrary('user32.dll'), 'PtInRect');
a1:= mxc-$AD9023-6;
b1:= $AD9036;
CopyMemory(pointer(@b1),@a1,4);
如果把mxc定义为longint会出现
Incompatible types: 'Integer' and 'Pointer'
错误
a1:= integer(mxc)-$AD9023-6; 如何? 参考技术A 兄弟,i服了you
weblogic部署项目报空指针异常,急!急!急!急!
####<2012-5-1 下午08时30分00秒 PDT> <Error> <HTTP> <hbgs-1n9nfxn8e8> <ManagedServer_1> <[ACTIVE] ExecuteThread: '0' for queue: 'weblogic.kernel.Default (self-tuning)'> <<WLS Kernel>> <> <> <1335929400847> <BEA-101020> <[weblogic.servlet.internal.WebAppServletContext@11b896d8 - appName: 'Learning', name: 'Learning', context-path: '/Learning'] Servlet failed with Exception
java.lang.NullPointerException
at weblogic.servlet.internal.ServletResponseImpl.sendError(ServletResponseImpl.java:610)
at org.apache.struts2.dispatcher.Dispatcher.sendError(Dispatcher.java:771)
at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:506)
at org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)
at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:91)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:42)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3242)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2010)
at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:1916)
at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1366)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:181)
>
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