反正我的VC6编不过
C:\Documents and Settings\All Users\桌面\aa\aa.cpp(10) : error C2065: 'fan' : undeclared identifier
C:\Documents and Settings\All Users\桌面\aa\aa.cpp(10) : warning C4244: '=' : conversion from 'int' to 'float', possible loss of data
C:\Documents and Settings\All Users\桌面\aa\aa.cpp(12) : warning C4508: 'main' : function should return a value; 'void' return type assumed
C:\Documents and Settings\All Users\桌面\aa\aa.cpp(15) : error C2373: 'fan' : redefinition; different type modifiers