How to enter letters in c++

How to enter letters in C? Input can be done in three ways: using cin and istream_iterator. Use getline. Use a character array.

How to enter letters in C

To enter letters in C, you can use the following methods:

1. Use cin and istream_iterator

#include <iostream>
#include <iterator>

int main() {
  std::istream_iterator<char> it(std::cin);
  char c = *it;
  std::cout << "输入的字母：" << c << "\n";
  return 0;
}

2. Use getline

#include <iostream>

int main() {
  std::string input;
  std::cout << "输入一个字母：" << std::endl;
  std::getline(std::cin, input);
  char c = input[0];
  std::cout << "输入的字母：" << c << "\n";
  return 0;
}

3. Use character array

#include <iostream>

int main() {
  char c[2];
  std::cout << "输入一个字母：" << std::endl;
  std::cin.getline(c, 2);
  std::cout << "输入的字母：" << c << "\n";
  return 0;
}

Note:

• The above method is suitable for input of single letters.
• If you need to enter multiple letters, you can use a string or character array.
• Make sure the letter entered is a character, not a string.

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