js中的运算总结（未完待续

【74由几个1几个5几个10几个20组成】

 1 var num = 74;
 2     for(one = 0; one <= num; one++){
 3         for(five = 0; five <= num/5 ; five++){
 4             for(ten = 0; ten <= num/5 ; ten++){
 5                 for(twenty = 0; twenty <= num/20; twenty++){
 6                     if(one + five*5 + ten*10 + twenty*20 == num){
 7                         console.log(one + "个1，" + five + "个5，" + ten +"个10，" + twenty + "个20组成。");
 8                     }
 9                 }
10             }
11         }
12     }