拼凑json的实例

一，拼凑  json 串 并传到后台

function writeToJson(num){
	 var i = 1;
	  var jsonData = "[";
	  for(i=1;i<=num;i++){
		  var dataname =  $("input[name='dataname"+i+"']").val();
		  var datacontent =  $("input[name='datacontent"+i+"']").val();
		  var noOpenInterface =  $("input[name='noOpenInterface"+i+"']").val();
		  var isopen=$("input:radio[name='isopen"+i+"']:checked").val();
		  if(i == num ){
			  jsonData += "{'dataname':'"+dataname+"','datacontent':'"+datacontent+"','isopen':'"+isopen+"','noOpenInterface':'"+noOpenInterface+"'}";
		  }else{
			  jsonData += "{'dataname':'"+dataname+"','datacontent':'"+datacontent+"','isopen':'"+isopen+"','noOpenInterface':'"+noOpenInterface+"'},";
		  }
	  }
	  jsonData += "]" ;
	  //alert("--------"+jsonData);
	  return jsonData ;
}