Các lệnh lựa chọn trong Pascal

Các lệnh lựa chọn trong Pascal

 09:57 27/07/2020

1. KHÁI NIỆM
- Một trong các đặc trưng của một chương trình máy tính là Dự ĐOÁN và ĐÁP ỨNG.
- Chương trình phải dự đoán được tất cả các khả năng có thể xảy ra và ứng với mỗi trường hợp trong phần dự đoán phải có đáp ứng thích hợp.
- Nếu dự đoán không đầy đủ các trường hợp ta sẽ mắc phải những lỗi lầm có thể rất lớn.
- Ngôn ngữ PASCAL có các lệnh lựa chọn cho phép người lập trình thể hiện khả năng dự đoán và đáp ứng của máy tính.

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