se分支結構if(Boolean){statemanets;}else{statements;}
switch分支結構switch(expr1){caseexpr2:statements;break;caseexpr3:statements;break;default:statements;break;}
迴圈結構for迴圈結構for(initexpr1;testexpr2;incrementexpr3){statements;}
While迴圈結構While(Boolean){statements;}
Do迴圈結構do{statements;}while(Boolean);
一般順序控制break'label'continue'label'reutrnexpr;label:statement;
for迴圈