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第二题答案

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木落绕指

#1 Created at ... [Delete] [Delete and Lock User]
var arr=[];
for(var i=0;i<s.length;i++){
  arr[i]=s[i];
}
function tonum(x){
 return x*1;
}
alert(arr);
return arr.map(tonum).reduce(function(x,y){return x*10+y;});

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