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JS获取当前时间
阅读量:66 次
发布时间:2019-02-26

本文共 490 字,大约阅读时间需要 1 分钟。

以下是优化后的内容:

创建一个新的日期对象,通过 new Date() 获取当前时间。接下来,分别提取年、月、日、时、分等信息,并按照特定格式进行处理。

首先,获取当前年份:var year = now.getFullYear();。然后,获取当前月份,并注意月份可能为单数字,需在前面补零:var month = now.getMonth() + 1;(月份从1到12)。

接着,获取当前日期:var day = now.getDate();,同样需要处理单数字情况。

对于时间部分,获取小时和分钟:var hh = now.getHours();var mm = now.getMinutes();。其中小时和分钟也需要进行格式处理。

按照ISO 8601标准,首先拼接年-月-日,格式为四位年份、两位月份(前补零)、两位日期(前补零)。然后,拼接时间部分,格式为两位小时(前补零)、冒号、两位分钟(前补零)。

最后,将所有信息拼接成完整的时间字符串,并通过 alert(clock); 显示结果。

整个过程通过简单的条件判断和字符串拼接实现,确保输出格式符合预期要求。

转载地址:http://fbmz.baihongyu.com/

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