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注意! 这个版本的文档是过时的,因为它描述了一个较老的SDK版本!请切换到最新SDK版本的文档。
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OS Functions

float clock ( ) #

Returns time in seconds (with microsecond precision) passed from the engine start-up. This function returns the time with the highest precision as possible from the operating system.

Return value

Time from the application start-up.

StringStack<> date ( string format ) #

Returns a current date in the given format.

Arguments

  • string format - Date format. The following placeholders can be used to show a date:
    • a: abbreviated weekday name (e.g., Sun)
    • b: abbreviated month name (e.g., Jan)
    • d: date and time (e.g., Thu Feb 8, 00:51)
    • s: second (00..60)
    • m: minute (00..59)
    • h: hour (0..23)
    • D: day of month (e.g, 1)
    • M: month (1..12)
    • Y: year
    • W: day of week (0..6); 0 is Sunday
    • %: a literal percent character

Return value

Current date in the given format.

string date ( string format, long time ) #

Returns a current date and time in the given format. This function can receive a second argument with an Unix timestamp to be converted into a readable format.

Arguments

  • string format - Date format.
  • long time - Unix time stamp to be converted. This is an optional argument.

Return value

Current date and time in the given format.

Examples

Source code (UnigineScript)
log.message("%s\n",date("%d\nMonth is %M\nYear is %Y\nDay is %D %b, %a\n"));
log.message("%s\n",date("%2h:%02m:%02s %04Y",));
Output
Wed Mar 20, 16:11
Month is 3
Year is 2013
Day is 20 Mar, Wed

16:11:14 2013

string getenv ( string name ) #

Gets a value of an environment variable.

Arguments

  • string name - Variable name.

Return value

Variable value.

Variable system ( string command, int wait = 1 ) #

Executes a shell command or commands.
Notice
On Windows, this function returns 0 if the wait argument is 0.

Arguments

  • string command - Command or commands to execute.
  • int wait - Value indicating if the program should wait for completion of command execution:
    • 1 to wait for completion. This value is used by default.
    • 0 not to wait.
    The value is required only on Windows.

Return value

Exit code of the last executed command if it was executed successfully; otherwise, -1.

Examples

Source code (UnigineScript)
// the following instruction will open a command prompt on Windows
system("cmd",1);

int time ( ) #

Returns the time since the Epoch (00:00:00 UTC, January 1, 1970), measured in seconds.

Return value

Number of seconds since 00:00:00, January 1, 1970.
Last update: 2019-08-16
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