各种语言 · 获取当前时间戳
| Java | 1. System.currentTimeMillis() / 1000 [ 最快 ] |
| 2. new Date().getTime() / 1000 | |
| 3. Calendar.getInstance().getTimeInMillis() / 1000 | |
| JavaScript | Math.round(new Date().getTime()/1000) |
| Math.round(+new Date() / 1000) | |
| Math.round(Date.now() / 1000) | |
| Microsoft .NET / C# | epoch = (DateTime.Now.ToUniversalTime().Ticks - 621355968000000000) / 10000000 |
| MySQL | SELECT unix_timestamp(now()) |
| Perl | time |
| PHP | time() |
| PostgreSQL | SELECT extract(epoch FROM now()) |
| Python | 先 import time 然后 time.time() |
| Ruby | 获取Unix时间戳：Time.now 或 Time.new 显示Unix时间戳：Time.now.to_i |
| SQL Server | SELECT DATEDIFF(s, '1970-01-01 00:00:00', GETUTCDATE()) |
| Unix / Linux | date +%s |
| VBScript / ASP | DateDiff("s", "01/01/1970 00:00:00", Now()) |
| Swift | NSDate().timeIntervalSince1970 |
| Go | import ( "time" ) int32(time.Now().Unix()) |
| 其他操作系统 (如果Perl被安装在系统中) | 命令行状态：perl -e "print time" |
