var myHeaders = new Headers();
myHeaders.append('Content-Type', 'application/x-www-form-urlencoded; charset=UTF-8');
fetch('index_articlelist.html', {
method: 'POST',
headers: myHeaders,
credentials: 'same-origin',
cache: 'default',
body: 'type=xxgg&page=1&size=20'
}).then(res=>res.json()).then(obj=>console.log(obj))var myHeaders = new Headers();
myHeaders.append