python AttributeError: _exit_ 这是什么错误

python AttributeError: exit 这是什么错误

0

2个回答

你可能要贴出完整的代码才行,猜测你出错的代码可能是在with语句块中。
下面是在stackoverflow撒花姑娘找到的一句话
with statement is for object that have __enter__ and __exit__ functions, i.e. Context Manager Types
希望对你有些启发

0

没有这个属性,或者定义有问题

0
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rndeclare @minDate datetimerndeclare @sql varchar(8000)rnrnSELECT @minDate=min([DATETIME])rnFROM #TrnSET @sql='select ORDER_NO,ITEM_NO'rnrnwhile @minDate<=getdate()rnbeginrn select @sql=@sql+',sum(case when convert(varchar(10),[DATETIME],120)='''rn +convert(varchar(10),@minDate,120)+''' then QTY else 0 end) ['rn +ltrim(month(@minDate))+N'月'+ltrim(day(@minDate))+N'日'+']'rn set @minDate=dateadd(day,1,@minDate)rnendrnrnexec (@sql+' from #T group by ORDER_NO,ITEM_NO')rnrnServer: Msg 156, Level 15, State 1, Line 1rn关键字 'from' 附近有语法错误。rn
看看这是什么错误??
Error: 500rnLocation: /mis/conn.jsprnInternal Servlet Error:rnrnjava.lang.IllegalStateException: Response has already been committedrn at org.apache.tomcat.core.HttpServletResponseFacade.sendError(HttpServletResponseFacade.java:157)rn at org.apache.jasper.runtime.JspServlet.unknownException(JspServlet.java:299)rn at org.apache.jasper.runtime.JspServlet.service(JspServlet.java:377)rn at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)rn at org.apache.tomcat.core.ServletWrapper.handleRequest(ServletWrapper.java:503)rn at org.apache.tomcat.core.ContextManager.service(ContextManager.java:559)rn at org.apache.tomcat.service.http.HttpConnectionHandler.processConnection(HttpConnectionHandler.java:160)rn at org.apache.tomcat.service.TcpConnectionThread.run(SimpleTcpEndpoint.java:338)rn at java.lang.Thread.run(Thread.java:484)rnrn
这是什么错误呀???????
我在VC6下运行代码,得到运行时错误:rnrnAssertion failed: new_p == 0, file setnewh.cpp, line 52rnrnPress any key to continuern为什么导致此错误呢?rn我的代码是:rn#include rn#include rnusing namespace std; rnvoid noMoreMemory(); rnvoid noMoreMemory() rn rncerr << "Error!" << endl; rnexit(-1);rn rnint main() rn rnset_new_handler(noMoreMemory); rnfor (;;) rnnew int[10000]; rncout << "Yes!" << endl; rnreturn 0; rn rnrn
这是什么错误???急!
--------------------Configuration: i4U - Win32 Debug Unicode--------------------rnLinking...rnmsvcrtd.lib(crtexew.obj) : error LNK2001: unresolved external symbol _WinMain@16rnDebugUnicode/i4U.exe : fatal error LNK1120: 1 unresolved externalsrnError executing link.exe.rn但我的程序里面根本就没有调用msvcrt的函数啊!
请问这是什么错误?
javax.servlet.ServletExceptionrn at org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:523)rn at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:421)rn at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224)rn at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194)rn at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)rn at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)rn at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)rn at com.sunrex.rexass.util.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:38)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)rn at com.sunrex.rexass.util.HttpSessionExpiredFilter.doFilter(HttpSessionExpiredFilter.java:104)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)rn at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)rn at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)rn at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)rn at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)rn at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)rn at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)rn at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)rn at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)rn at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)rn at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)rn at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)rn at java.lang.Thread.run(Thread.java:595)
这是什么错误》
写了一个类,rnStudentMgt rn编译过了,运行的时候出现下面的问题,rnException in thread "main" java.lang.NoClassDefFoundError: StudentMgt (wrong namrne: com/tarena/biz/StudentMgt)rn at java.lang.ClassLoader.defineClass1(Native Method)rn at java.lang.ClassLoader.defineClass(Unknown Source)rn at java.security.SecureClassLoader.defineClass(Unknown Source)rn at java.net.URLClassLoader.defineClass(Unknown Source)rn at java.net.URLClassLoader.access$000(Unknown Source)rn at java.net.URLClassLoader$1.run(Unknown Source)rn at java.security.AccessController.doPrivileged(Native Method)rn at java.net.URLClassLoader.findClass(Unknown Source)rn at java.lang.ClassLoader.loadClass(Unknown Source)rn at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)rn at java.lang.ClassLoader.loadClass(Unknown Source)rn at java.lang.ClassLoader.loadClassInternal(Unknown Source)rn不知道是什么问题
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