Constructs
Bayani Gaba-gaba
Every program you will ever write, however large, is built from just three basic constructs repeated and combined: doing things in order, choosing between different paths, and repeating a set of instructions. Master these three and you can structure almost any solution; get them wrong and even a well-planned algorithm will misbehave.
This lesson works through sequence, selection and iteration in Python, including nesting one construct inside another, and the crucial distinction between a loop that runs a known number of times and a loop that keeps running until a condition changes. Every example uses Python, one of the three languages, alongside C# and Java, permitted for the Paper 2 practical exam.
Manufura
- Understand the structural components of a program (variable and type declarations, command sequences, selection, iteration, data structures, subprograms)
- Be able to use sequencing, selection and iteration constructs in their programs
Takardar Darasi
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Nazarin Darasi
Barka da kammala darasi akan Constructs. Yanzu da kuka bincika mahimman raayoyi da raayoyi, lokaci yayi da zaku gwada ilimin ku. Wannan sashe yana ba da ayyuka iri-iri Tambayoyin da aka tsara don ƙarfafa fahimtar ku da kuma taimaka muku auna fahimtar ku game da kayan.
Za ka gamu da haɗe-haɗen nau'ikan tambayoyi, ciki har da tambayoyin zaɓi da yawa, tambayoyin gajeren amsa, da tambayoyin rubutu. Kowace tambaya an ƙirƙira ta da kyau don auna fannoni daban-daban na iliminka da ƙwarewar tunani mai zurfi.
Yi wannan ɓangaren na kimantawa a matsayin wata dama don ƙarfafa fahimtarka kan batun kuma don gano duk wani yanki da kake buƙatar ƙarin karatu. Kada ka yanke ƙauna da duk wani ƙalubale da ka fuskanta; maimakon haka, ka kallesu a matsayin damar haɓaka da ingantawa.
- Which construct executes instructions one after another in the order they are written? A) Selection B) Iteration C) Sequence D) Subprogram Answer: C
- A loop must run exactly 20 times. Which type of iteration is most appropriate? A) Condition-controlled B) Count-controlled C) Nested selection D) Sequence Answer: B
- In Python, which keyword starts a condition-controlled loop? A) for B) while C) if D) def Answer: B
- What determines which construct a line of Python code belongs to when constructs are nested? A) The order variables are declared B) The line's indentation C) The number of comments above it D) The variable names used Answer: B
- A while loop's condition never becomes false because the loop body never updates the variable it depends on. What is the result? A) A syntax error B) The loop runs zero times C) The loop never terminates D) The loop automatically corrects itself Answer: C
Akwai a cikin manhajar Green Bridge
Zazzage manhajar Green Bridge CBT a wayar ka ko kwamfyuta ka don samun cikakkiyar bayanan darasi, tambayoyin aiki, da ƙari.
Akwai a cikin manhajar Green Bridge
Zazzage manhajar Green Bridge CBT a wayar ka ko kwamfyuta ka don samun cikakkiyar bayanan darasi, tambayoyin aiki, da ƙari.
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