$('body').append(count(4, 3, '+')); $('body').append(count(4, 3, '-')); $('body').append(count(4, 3, '/')); $('body').append(count(4, 3, '*')); function count(a, b, o) { return wrap(eval(a + o + b)) } function wrap(v) { return '<p>' + v + '</p>' } <body><script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js" ></script></body> (责任编辑:) |