能吧，这样写我编译执行通过了。
g++ -v
gcc version 15.1.0 (Rev5, Built by MSYS2 project)
g++ -std=c++23 test.cc -o test
[code=c++]
#include <iostream>

struct Example {
    int value = 42;

    void demo() {
        auto lambda = [](auto& self, int x) -> int {
            return self.value + x;
        };
        std::cout << lambda(*this, 8) << std::endl;
    }
};

int main() {
    Example e;
    e.demo();  // 输出 50
}
[/code]
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