自动加的字符什么鬼

操作系统:Android 10 (VOG-AL00 HUAWEI/VOG-AL00 10.1.0.135(C00E135R1P8)/App7.21/v20007218)

WebView:Mozilla/5.0 (Linux; Android 10; VOG-AL00 Build/HUAWEIVOG-AL00; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/80.0.3987.99 Mobile Safari/537.36 ithome/rmsdklevel2/day/7.21