c ++类错误未命名类型

Question

尝试在类中使用print函数来打印声明的变量.

class MovieData{
private:
    int year, runtime;
    string title, director; 
public:
    MovieData(string t, string d, int y, int rt){
        year = y;
        runtime = rt;
        title = t;
        director = d;
    }

    print{
        cout << title << " (" << year << "). Directed by " << director << ". (" << rt << " minutes)";
    }
};

错误出现了:

main.cpp:20:9: error: ‘print’ does not name a type
     print{
     ^
main.cpp: In function ‘void doIt(std::string, std::string, int, int)’:
main.cpp:33:5: error: ‘class MovieData’ has no member named ‘print’
md.print();

Answer 1

你需要括号print以及返回类型,如下所示:void print() {...}.