let lastTimestamp = 0

/** 获取保证递增的时间戳
 *  每次获取都保证比上次获取的时间戳大
 *
 */
export function getIncreaseTimestamp(): number {
    const currentTimestamp = Date.now()
    if (currentTimestamp <= lastTimestamp) {
        lastTimestamp += 1
    } else {
        lastTimestamp = currentTimestamp
    }
    return lastTimestamp
}