USBHOST获取设备列表deviceList为什么一直为空
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解决时间 2021-01-16 02:31
- 提问者网友：自食苦果
- 2021-01-15 11:54
USBHOST获取设备列表deviceList为什么一直为空
最佳答案
- 五星知识达人网友：蕴藏春秋
- 2020-08-06 04:54
function postorder($root)
configure:3458: checking whether the C compiler works
configure:3480: gcc conftest.c >&5
ld: malformed 32-bit x.y.z version number: 11.4.0d1
collect2: ld returned 1 exit status
configure:3484: $? = 1
configure:3522: result: no
configure: failed program was:
|
configure:3458: checking whether the C compiler works
configure:3480: gcc conftest.c >&5
ld: malformed 32-bit x.y.z version number: 11.4.0d1
collect2: ld returned 1 exit status
configure:3484: $? = 1
configure:3522: result: no
configure: failed program was:
|
全部回答
- 1楼网友：渡鹤影
- 2020-07-26 12:39
$pngname = $openid.'.png'; if(imagepng($qr, $pngname)){ imagedestroy($qr); $qrurl = w_domain.''.$pngname; $this->assign('qrcode',$qrurl); $this->display(); }
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