楚玉

摘要： 1 var btn1 = document.createElement("input"); 2 btn1.type = "radio"; 3 btn1.name = "choose"; 4 var btn2 = document.createElement("input"); 5 btn2.type = "radio"; 6 btn2.name = "choose"; 7 var btn3 = document.createElement("input") 阅读全文