微信jssdk 图片预览接口调用方法！

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$(".weui_uploader_files li").click(function(e) {
			var thisPath = webRoot + $(this).attr("path");
			var lis = $(this).siblings();
			var imgs = new Array();
			for (i = 0; i < lis.length; i++) {
				var photoPath = lis[i].getAttribute("path");
				imgs.push(webRoot + photoPath);
			}
			wx.previewImage({
				current : thisPath,
				urls : imgs
			});
		});