1 <html> 2 <head> 3 <script> 4 function BatchAddToBasket() { 5 var questionNums = ''; 6 var checkboxs = document.getElementsByName('question'); 7 for (var i = 0; i < checkboxs.length; i++) { 8 var isChecked = false; 9 if (checkboxs[i].checked) { 10 isChecked = true; 11 break; 12 } 13 } 14 if (!isChecked) { 15 alert('请至少选择一个选项'); 16 return; 17 } 18 19 for (var i = 0; i < checkboxs.length; i++) { 20 if (checkboxs[i].checked) { 21 questionNums += checkboxs[i].id; 22 if (i < checkboxs.length - 1) 23 questionNums += ','; 24 } 25 } 26 alert('选项id：' + questionNums); 27 } 28 29 function SelectAll(obj) { 30 if (obj.checked) { 31 var checkboxs = document.getElementsByName('question'); 32 for (var i = 0; i < checkboxs.length; i++) { 33 checkboxs[i].checked = true; 34 } 35 } else { 36 var checkboxs = document.getElementsByName('question'); 37 for (var i = 0; i < checkboxs.length; i++) { 38 checkboxs[i].checked = false; 39 } 40 } 41 } 42 </script> 43 </head> 44 <body> 45 <div> 46 <input type="checkbox" name="checkboxAll" onclick="SelectAll(this)"> 47 <button onclick="BatchAddToBasket()">加入试题篮</button> 48 </div> 49 <div> 50 <input type="checkbox" name="question" id=0> 51 <input type="checkbox" name="question" id=1> 52 <input type="checkbox" name="question" id=2> 53 </div> 54 </body> 55 </html>