北京时间请求地址：

url: "http://api.k780.com/",
requestHeader: {
	"Content-type": "application/x-www-form-urlencoded"
},
method: 'get',
params: {
     app: "life.time",
     appkey: "10003",
     sign: "b59bc3ef6191eb9f747dd4e83c99f2a4",
     format: "json",
 }