function sum(...rest) { var num = 0; for( var i = 0,len = rest.length; i < len; i++){ if(rest[i] !== undefined){ num += rest[i]; } } return num; };
var tt = pi || 3.14;return r r tt ;
Sign in to make a reply
东程11017
function sum(...rest) { var num = 0; for( var i = 0,len = rest.length; i < len; i++){ if(rest[i] !== undefined){ num += rest[i]; } } return num; };
var tt = pi || 3.14;
return r r tt ;