这听起来很奇怪，但我想用一些数据更新日期列。请在下表中找到。我正在处理JSON格式的数据。CityName|data1|data2|dateMumbai|1.234|2.3456|SatJan20201812:00:00GMT+0000(UTC)Mumbai|6.234|2.3456|SatJan20201818:00:00GMT+0000(UTC)Mumbai|1.234|2.3456|SunJan21201812:00:00GMT+0000(UTC)Mumbai|2.234|2.3456|SunJan21201818:00:00GMT+0000(UTC)Mumbai|1.234|2