我使用$arr_mac = $_POST['mac'] ;
for ($i = 0; $i < count($arr_mac); $i++) {
$sql = "INSERT INTO staff (mac) VALUES (' ".$arr_mac[$i]." ')
}
或gralde任务./gradlew assembleRelease生成apk，然后使用assembleRelease，命令显示
adb install xxx.apk
adb: failed to install /Users/Documents/xxx.apk: Failure [INSTALL_PARSE_FAILED_NO_CERTIFICATES: Package /data/app/vmdl44198340.tmp/base.apk has no certificates at entry AndroidManifest.xml]