window powershell 获取前后日期,格式化日期

today"

昨天

"昨天是:today.AddDays(-1))"

明天

"明天是:today.AddDays(1))"

一周前

"一周前是: today.AddDays(-7))"

五个月前

"五个月前:today.AddMonths(-5))"

十年之前

"十年之前:today.AddYears(-10).Year)年,我们是朋友."

日期格式化

"格式化日期:" + $today.ToString('yyyy-MM-dd')

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