在字符串c ++的向量中查找字母数

#include <iostream>
#include <vector>
#include <string>

int countLettersInStringVector(const std::vector<std::string>& strings) {
    int totalLetters = 0;

    for (const std::string& str : strings) {
        for (char c : str) {
            if (isalpha(c)) {
                totalLetters++;
            }
        }
    }

    return totalLetters;
}

int main() {
    std::vector<std::string> strings = {"Hello", "World", "123", "abc123"};

    int letterCount = countLettersInStringVector(strings);
    std::cout << "Total letters in the string vector: " << letterCount << std::endl;

    return 0;
}