Difference between revisions of "MC-Basic:WATCH"
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| + | {{Languages|MC-Basic:WATCH}} | ||
{{MC-Basic | {{MC-Basic | ||
|SHORT FORM= | |SHORT FORM= | ||
| Line 4: | Line 5: | ||
|SYNTAX= | |SYNTAX= | ||
| − | + | Watch <expression> | |
| + | |||
| + | Watch ''<task name> <variable_name>'' | ||
| + | |||
|AVAILABILITY= | |AVAILABILITY= | ||
| Line 10: | Line 14: | ||
|DESCRIPTION= | |DESCRIPTION= | ||
| − | + | There are two types of Watch command available: | |
| + | |||
| + | Watch command without a task name shows the value of any expression. | ||
| + | |||
| + | Watch command with a task name only exhibits the value of global variables addressed by the task, or static variables declared within the task. | ||
|TYPE= | |TYPE= | ||
| Line 28: | Line 36: | ||
|LIMITATIONS= | |LIMITATIONS= | ||
| − | + | ||
| + | Watch command without a task name cannot be used for function calls. | ||
| + | |||
| + | In Watch command with a task name, the task must exist and must be stopped. Global variables must be approched by the task. | ||
|EXAMPLE= | |EXAMPLE= | ||
| + | |||
| + | common shared glob_var as long = 8 | ||
| + | |||
| + | MyTask.Prg: | ||
| + | |||
| + | dim shared stat_var as double = 54.76 | ||
| + | |||
| + | Program | ||
| + | glob_var = 23 | ||
| + | End Program | ||
| + | |||
| + | |||
| + | From every context: | ||
| + | |||
| + | Watch glob_var | ||
| + | Watch sys.idn[1] | ||
| + | |||
| + | From MyTask.Prg: | ||
| + | |||
| + | Watch stat_var | ||
| + | |||
| + | While MyTask.prg is paused: | ||
| + | |||
| + | Watch MyTask1.prg stat_var | ||
| + | |||
| + | While MyTask.prg is paused or killed: | ||
| + | |||
| + | Watch MyTask1.prg glob_var | ||
| + | |||
|SEE ALSO= | |SEE ALSO= | ||
* [[MC-Basic:SAVE|SAVE]] | * [[MC-Basic:SAVE|SAVE]] | ||
}} | }} | ||
Latest revision as of 10:15, 12 August 2020
| Language: | English • 中文（简体） |
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There are two types of Watch command available:
Watch command without a task name shows the value of any expression.
Watch command with a task name only exhibits the value of global variables addressed by the task, or static variables declared within the task.
Syntax
Watch <expression>
Watch <task name> <variable_name>
Availability
All versions
Scope
Task or Terminal
Limitations
Watch command without a task name cannot be used for function calls.
In Watch command with a task name, the task must exist and must be stopped. Global variables must be approched by the task.
Examples
common shared glob_var as long = 8
MyTask.Prg:
dim shared stat_var as double = 54.76
Program glob_var = 23 End Program
From every context:
Watch glob_var Watch sys.idn[1]
From MyTask.Prg:
Watch stat_var
While MyTask.prg is paused:
Watch MyTask1.prg stat_var
While MyTask.prg is paused or killed:
Watch MyTask1.prg glob_var