C# learning path

C# の基礎

プログラム構造、型、文字列、制御フロー、メソッド、コレクション、エラー処理を学びます。

8 lessons

Understand the entry point and the structure of a C# console program.

Declare strongly typed values and constants in C#.

Compose and inspect text with modern C# string features.

Choose behavior with if statements and concise switch expressions.

Use for, foreach, and while loops safely.

Define reusable methods with named results and multiple return values.

Store ordered values and keyed data with generic collections.

Validate operations and recover from expected failures.