摘要： 1,function b1(){ $S.Alert("b1");}function b2(){ $S.Alert("b2");}function b3(){ $S.Alert("b3");}function b4(){ $S.Alert("b4");}~function(){ return !1 ? (b1(),b2()) : (b3(),b4(),b1());}()2,~function(){ var a1,a2; //如果写成 var a1 = a2 = 18; a2为全局变量; a1 = a2 = 18; $ 阅读全文