fireflyoo的博客

在键盘上的探戈上看到这俩道题的，试着用Javascript解。。        //计算字符串中各字符出现的次数。function countalphabet(str){ var obj={}; obj.toString=function () { var s=[]; for(var key in this) { v...

var operate={ 'gcd':{fun:function(a,b){return b==0?a:arguments.callee(b,a%b);},precedence:9,isPrefix:true}, '+u':{fun:function(a){return a;},precedence:9,isPrefix:true}, '-u':{fun:functio...