JavaScript 实现的checkbox经典实例分享
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<!DOCTYPE html> <html> <head> <meta charset= "UTF-8" > <title>邮件删除</title> <style type= "text/css" > *{ margin: 0; padding: 0; } table{ width: 400px; margin-left:200px; margin-top:20px; font-weight: bold; } th,td{ padding: 7px; } #topOne{ width: 80px; padding: 10px; } #topTwo{ width: 120px; text-align: center; } #topThree{ width: 200px; text-align: center; } #endColspan{ text-align: center; } #endColspan input{ margin: 0 5px; } </style> </head> <body> <table border= "2" cellspacing= "0" cellpadding= "" > <!--第一行--> <tr id= "top" > <td id= "topOne" > <input type= "checkbox" id= "allInpTop" value= "" /> <span id= "allSpanTop" >全选</span> </td> <td id= "topTwo" >选择路线</td> <td id= "topThree" >请选择英雄</td> </tr> <!--第二行--> <tr id= "content1" > <td id= "contentOne1" > <input type= "checkbox" name= "" id= "contentOne_input1" value= "" /> </td> <td id= "contentTwo1" >上单</td> <td id= "contentThree1" >德玛</td> </tr> <tr id= "content2" > <td id= "contentOne2" > <input type= "checkbox" name= "" id= "contentOne_input2" value= "" /> </td> <td id= "contentTwo2" >中单</td> <td id= "contentThree2" >安妮</td> </tr> <tr id= "content3" > <td id= "contentOne3" > <input type= "checkbox" name= "" id= "contentOne_input3" value= "" /> </td> <td id= "contentTwo3" >打野</td> <td id= "contentThree3" >螳螂</td> </tr> <!--第三行--> <tr id= "end" > <td id= "endOne" > <input type= "checkbox" id= "endOne_input" value= "" /> <span id= "endOne_span" >全选</span> </td> <td id= "endColspan" colspan= "2" > <input type= "button" name= "" id= "endColspan_btn1" value= "全选" /> <input type= "button" name= "" id= "endColspan_btn2" value= "取消全选" /> <input type= "button" name= "" id= "endColspan_btn3" value= "反选" /> <input type= "button" name= "" id= "endColspan_btn4" value= "删除所选邮件" /> </td> </tr> </table> </body> <script type= "text/javascript" > var allInpTopObj = document.getElementById( "allInpTop" ); var endOne_input = document.getElementById( "endOne_input" ); var content1Obj = document.getElementById( "content1" ); var content2Obj = document.getElementById( "content2" ); var content3Obj = document.getElementById( "content3" ); var contentOne_inputObj1 = document.getElementById( "contentOne_input1" ); var contentOne_inputObj2 = document.getElementById( "contentOne_input2" ); var contentOne_inputObj3 = document.getElementById( "contentOne_input3" ); var endColspan_btn1Obj = document.getElementById( "endColspan_btn1" ); var endColspan_btn2Obj = document.getElementById( "endColspan_btn2" ); var endColspan_btn3Obj = document.getElementById( "endColspan_btn3" ); var endColspan_btn4Obj = document.getElementById( "endColspan_btn4" ); var luxianObj = document.getElementById( "luxian" ); var renwuObj = document.getElementById( "renwu" ); var strInput = [contentOne_inputObj1,contentOne_inputObj2,contentOne_inputObj3,allInpTopObj,endOne_input]; var checks = [contentOne_inputObj1,contentOne_inputObj2,contentOne_inputObj3]; var s = [content1Obj,content2Obj,content3Obj]; var bool = true ; var num; function pandaunFun () { if (allInpTopObj.checked = true ) { allInpTopObj.checked = false ; } if (endOne_input.checked = true ) { endOne_input.checked = false ; } } function allFun () { for ( var i = 0; i < strInput.length; i++) { strInput[i].checked = true ; //选中 } } function cancelFun () { for ( var i = 0; i < strInput.length; i++) { strInput[i].checked = false ; //选中 } } function unAllFun () { for ( var i = 0; i < strInput.length; i++) { if (strInput[i].checked == true ) { strInput[i].checked = false ; //非选中 } else { strInput[i].checked = true ; //选中 } } pandaunFun (); } function deleteFun () { for ( var i = 0; i < s.length; i++) { if (checks[i].checked) { s[i].style.display = "none" ; } } pandaunFun (); } function numCheckFun () { num = 0; for ( var j = 0; j < checks.length; j++) { if (checks[j].checked) { num++; } } if (num == checks.length) { allInpTopObj.checked = true ; endOne_input.checked = true ; } else { allInpTopObj.checked = false ; endOne_input.checked = false ; } } endColspan_btn1Obj.onclick = allFun; endColspan_btn2Obj.onclick = cancelFun; endColspan_btn3Obj.onclick = unAllFun; endColspan_btn4Obj.onclick = deleteFun; for ( var i = 0; i < checks.length; i++) { checks[i].onclick = numCheckFun; } </script> </html> |
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