js gets radio button or check box value and operation

Copy code The code is as follows: function checkbox() { var str=document.getElementsByName("box"); var objarray=str.length; var chestr=""; for (i=0;i {//Welcome to Script House, our website is www.jb51.net, easy to remember, Script House, js is js special effects, this site collects a large number of high-quality js codes, and there are many more Ad code download. if(str[i].checked == true) { chestr =str[i].value ","; } }//Welcome to the Script House , our website is www.jb51.net, it is easy to remember, script home, js is js special effects, this site collects a large number of high-quality js codes, and there are many advertising codes to download. if(chestr == "") { alert("Please choose a hobby first~!"); } else { alert("You The first choice is: " chestr); } } ">Script Home , high-quality web page special effects and advertising code that webmasters must have. zzjs.net, webmaster js special effects. Select your hobby: Diving Running Copy code The code is as follows: label{ cursor:pointer; font-size:12px; margin:0px 2px 0px 0px; color:#2B86BD; } .d0{ margin-bottom:30px; } .d0 input{ cursor:pointer; margin:0px; padding:0px 2px; } var dr=document.getElementsByTagName("div"),i,t=""; function submit1(num,type){ t=""; var dri=dr[num].getElementsByTagName("input"); for(i=0;i if(dri[i].checked){ if(type==0){ alert(dri[i].value); break; }else{ t=t dri[i].value ";"; } } } if(type==1) alert(t); } //ChangeSelect submit1.allselect=function(){ var drc=dr[1].getElementsByTagName("input"); for(i=0;i drc[i].checked=true; } } //allNot submit1.allNot=function(){ var drc=dr[1].getElementsByTagName("input"); for(i=0;i drc[i].checked=false; } } //reverse submit1.reverseSelect=function(){ var drc=dr[1].getElementsByTagName("input"); for(i=0;i if(drc[i].checked){ drc[i].checked=false; }else{ drc[i].checked=true; } } } js获取单选框、复选框的值及操作 前天 昨天 今天 明天 后天 提交 前年 去年 今年 明年 后年 提交 全选 反选 全不选