export function getInstance() {
		return {
			_sucCallback: null,
			_failCallback: null,
			_method: 'GET',
			_data: {},
			_header: { 'content-type': 'application/json' },
			_url: '',
			send: function() {
				wx.request({
					url: this._url,
					data: this._data,
					method: this._method,
					header: this._header,
					success: function(res) {
						this._sucCallback(res);
					}.bind(this),
					fail: function(res) {
						this._failCallback(res);
					}.bind(this)
				});
				return this;
			},
			success: function(callback) {
				this._sucCallback = callback;
				return this;
			},
			fail: function(callback) {
				this._failCallback = callback;
				return this;
			},
			url: function(url) {
				this._url = url;
				return this;
			},
			data: function(data) {
				this._data = data;
				return this;
			},
			header: function(header) {
				this._header = header;
				return this;
			},
			method: function(method) {
				this._method = method;
				return this;
			}
		};
}