function sum(...rest) { var Sum = null; for(var i=0;i<rest.length;i++){ Sum += rest[i] } return Sum } sum(1,2,3,4,5,6);
var Sum = 0;
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王志阳yy
function sum(...rest) { var Sum = null; for(var i=0;i<rest.length;i++){ Sum += rest[i] } return Sum } sum(1,2,3,4,5,6);