有没有类似于.Contains的函数可以和"char“一起工作？

string = "Hello, World!"
if 'c' in string:
    print("字符串包含字符'c'")
else:
    print("字符串不包含字符'c'")

String string = "Hello, World!";
if (string.contains("c")) {
    System.out.println("字符串包含字符'c'");
} else {
    System.out.println("字符串不包含字符'c'");
}

#include <iostream>
#include <string>
using namespace std;

int main() {
    string str = "Hello, World!";
    if (str.find('c') != string::npos) {
        cout << "字符串包含字符'c'" << endl;
    } else {
        cout << "字符串不包含字符'c'" << endl;
    }
    return 0;
}