增加获取附近相机接口字段可能为空判断

‘liusuyi’

2023-06-21 0d41af875165ed3d4bc0560b7053fdf43df51608

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// https://github.com/tc39/proposal-global
var $export = require('./_export');
 
$export($export.S, 'System', { global: require('./_global') });