I. Relationship between the return value of OS. System (CMD) in Python and the return value of Linux commands (For details, refer to the additional content in this article)
Everyone is used to using the OS. systemv () function to execute Linux
It is mainly included in the C source file OS _core.c.1. uC/OS-II Task Scheduling (1) uC/OS-II Scheduling Algorithm
UC/OS-II uses the priority-based scheduling algorithm, always select the current ready state of the highest priority task scheduling.
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Golang Standard Library
Today we continue the OS package, not much to say a word is Golang OS package
(1) Type FileInfo inside two functions stat and lstat I'm not
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Package Mainimport ("FMT" "Io/ioutil" "OS" "Reflect" "Time"Func Main () {dir, _:=OS. GETWD () fmt. Println ("Dir:", dir) Err:= OS. Chdir ("D:/project/test2") dir, _=OS.
Os. Rename () The prototype of this function is Func Rename (oldname, newname string) error, the input is the old filename, the new file name, and then returns an error in fact the function of the real implementation of the Syscall. Rename () and
1. ostaskcreate ()Ostaskcreate () creates a new task, which can be created before the multi-task environment is started or executed. Note: tasks cannot be created in ISR. A task must be in an infinite loop structure.The source code is as follows:
#
(1) OS. The GETWD function prototype is func GETWD () (PWD string, err Error) that returns the string of the path and a ERR message, why do you want to open this first? Because when I look at the OS package, the first one is Chkdir this package, but
1. ostaskcreate ()Ostaskcreate () creates a new task. You can create a task before the multi-task environment starts or run the task. Note: tasks cannot be created in ISR. A task must be in an infinite loop structure.The source code is as follows:
Content of this section:
New developers of MacintoshExperienced Macintosh developers, before Mac OS XNon-Apple integrated development environment for Macintosh developersTool developersPlug-in developersDrivers and system software
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