上游充道大粤 SJTU School Of Software 2009-2-3 Some examples 1 Exception if(state =0) { } state ==i 1) {..}; 软件学院SJTU School Of Software 2009-2-3 软件学院 Some examples 1 Exception if(state = = 0) { … } if(state = = 1) { … } ；