網(wǎng)絡(luò)請(qǐng)求的中文解碼顾孽，如今iOS9已經(jīng)將如下解碼方式砍了，原因是有些特殊字符串無法識(shí)別
url = [url stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
替換為如下代碼:
url = [url stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSetcharacterSetWithCharactersInString:@"`#%^{}\"[]|\\<> "].invertedSet];
