jsonpath中key名称r2.va中带的点要怎么区别

先将JSON转换成 JS Array，然后在使用each

var obj = $.parseJSON(jsonString);
$.each(obj,function(ky,vl) {

console.logf("key"+ky);

console.logf("value"+vl);
});

parseJSON貌似需要插件支持 ，还可以试试这个转换
var objson = "[{Title:'Sjr',Content:'Library',summary:'summary'},{Title:'Sjr',Content:'Library',summary:[{sum0:'sum0'},{sum0:'sum1'},{sum0:'sum2'}]},{Title:'Sjr',Content:'Library',summary:[{sum0:'sum0'},{sum0:'sum1'},{sum0:'sum2'}]}]";
var obj = eval(objson);