修改首页底部备案号颜色为黑色

Tcsm

2023-05-17 42058070e884f1aad7927899b57f16d787356069

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