三维实景增加选择状态

‘liusuyi’

2024-03-02 ef412709a533e49235ff2f4775d5385f9646f5e1

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export function isPromise(maybePromise) {
    return (!!maybePromise &&
        !!maybePromise.then &&
        typeof maybePromise.then === 'function');
}