function sum(...rest){ var i; var n=0; for(i=0;i<rest.length;i++){ n=n+rest[i]; } console.log('n = ' + n); } sum(1,2,3,4);
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要找回自己
function sum(...rest){ var i; var n=0; for(i=0;i<rest.length;i++){ n=n+rest[i]; } console.log('n = ' + n); } sum(1,2,3,4);