取消坐标数组改为实体类

‘liusuyi’

2024-03-11 7dfd5f52332212d2f2c111cc11147469a68b7bdb

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