讲义课件kuka机器人structogram

1、 e( visitor)(as long as you want)(What do you want?)Short information (structogram);Test MyFriend:(at once?)Download();Request test();Answer my questions:(What is structogram?)StructogramsGraphic representation of the procedure:Structograms (DIN 66261) Structograms (also called Nassi-Shneiderman dia

2、grams) are one way of formulating abstract descriptions of algorithms. The program sequence is represented using standardized symbols that are not dependent on the program code used. hcf (a, b)TrueFalsehcf = aa = a - bb = b - aa ba bStructograms comparison with programming languagefunction hcf (a,b:

3、integer);while ab do If ab then a:=a-b else b:=b-a;hcf:=a;PascalKRLStructogramsExample of a structogram:An algorithm is required for calculating the highest common factor of two numbers a and b. This is embedded in a function hcf with two transfer parameters (a and b).Structogram elementsConditionTr

4、ueFalseState-ment(s)AState-ment(s)BStructograms - overview of symbolsConditionStatement(s)Function name (.)ConditionTrueFalseState-ment(s)AStatement nStatement 1Statement 2.Statement(s)Condition12?Case statementState-ment(s) 1State-ment(s) 2State-ment(s) n.The statements are executed in the sequence

5、 Statement 1, Statement 2, ., Statement n. Statements in the program code DescriptionStatementSymbolsStatement nStatement 1Statement 2.Structograms - symbolsIf the logic condition is met (true), statements A are executed, otherwise program execution is resumed at the next statement. IF statement (wi

6、thout ELSE)DescriptionStatementSymbolsConditionTrueFalseState-ment(s)AStructograms - symbolsIf the logic condition is met (true), statements A are executed, otherwise statements B are executed. IF statement (with ELSE)DescriptionStatementSymbolsConditionTrueFalseState-ment(s)AState-ment(s)BStructogr

7、ams - symbolsIf CASE statement=1, statements 1 are executed. If CASE statement=2, statements 2 are executed, etc. In all other cases, statements n are executed. CASE statementDescriptionStatementSymbols12?Case statementState-ment(s) 1State-ment(s) 2State-ment(s) n.Structograms - symbolsThe statement

8、s are executed while the condition is fulfilled. As soon as the condition is no longer met when execution of the loop is started again, program execution is resumed at the first statement after the loop. WHILE loopDescriptionStatementSymbolsConditionStatement(s)Structograms - symbolsStatement(s)Cond

9、itionStructograms - symbolsThe statements are executed until the condition is fulfilled. As soon as the condition is met, program execution is resumed at the first statement after the loop. The statements are always executed at least once. REPEAT loopDescriptionStatementSymbolsi:=(from, step, to)Sta

10、tement(s)Structograms - symbolsThe statements are executed a known number of times. The run variable i runs from the initial value (“from”) to the final value (“to”) with the specified increment (“step”). As soon as the run variable is greater than or equal to “to”, program execution is resumed at the next statement. FOR loopDescriptionStatementSymbolsFunction name (.)Structograms - symbolsA certain sequence of statements is segregated from a certain position in the program and implemented as a separate subprogra