(function(){ var addLarge = function(n1,n2){ var over = 0; var ret = ""; var len = Math.min(n1.length,n2.length); var sln1 = n1.substr(n1.length - len,n1.length ); var sln2 = n2.substr(n2.length - len,n2.length ); for(var i = len;i > 0; i--) { var di = parseInt(sln1[i-1]); var dj = parseInt(sln2[i-1]); ret = (over + di + dj)>= 10 ? ((over + di + dj) - 10 + ret) : ((over+di+dj) + ret); over = ((over + di + dj) /10 ) | 0; } if(n1.length != n2.length) { if(n1.length > n2.length){ ret = addLarge(n1.substr(0,n1.length-len),over.toString()) + ret; } else{ ret = addLarge(n2.substr(0,n2.length - len),over.toString()) + ret; } return ret; } else{ if(over > 0) ret = over + ret; return ret; } }; var l1 = "9999999999999"; var l2 = "1111111111111"; var r = addLarge(l1,l2); console.log(r); })();
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大数据相加
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时间: 2024-05-19 23:07:49