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- #include <iostream>
- using namespace std;
- int main() {
- setlocale(0, "");
- char choice;
- for (;;) {
- do {
- cout << "Справка по:\n";
- cout << " 1. if\n";
- cout << " 2. switch\n";
- cout << " 3. for\n";
- cout << " 4. while\n";
- cout << " 5. do-while\n";
- cout << "Выберите один из пунктов: ";
- cin >> choice;
- cout << "\n";
- } while (choice < '1' || choice>'5');
- if (choice == 'q') break;
- switch (choice) {
- case '1':
- cout << "Предложение if:\n\n";
- cout << "if(условие) предложение;\n";
- cout << "else предложение;\n";
- break;
- case '2':
- cout << "Предложение switch:\n\n";
- cout << "switch(выражение) {\n";
- cout << " case константа:\n";
- cout << " последовательность предложений\n";
- cout << " break;\n";
- cout << "//...\n";
- cout << "}\n";
- break;
- case '3':
- cout << "Цикл for:\n\n";
- cout << "for(инициализация;условие;приращение) {\n";
- cout << " предложения;\n";
- cout << "}\n";
- break;
- case '4':
- cout << "Цикл while:\n\n";
- cout << "while(условие){\n";
- cout << " предложения;\n";
- cout << "}\n";
- break;
- case '5':
- cout << "Цикл do-while:\n\n";
- cout << "do{\n";
- cout << " предложения;\n";
- cout << "}while(условие);\n";
- break;
- }
- }
- }
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