编译器没有将类中的函数调用识别为类的成员

Question

试图找出为什么我得到一个错误：函数中未解析的外部主引用

头文件：

#define SURGERY_H
#include <string>
using namespace std;

class Surgery {

private:
static int didhave[5];
static float costs[5], total;
static string types[5];
public:
friend void requestInput();
friend float sendTotal();
};

static float costs[5] = { 100.00, 200.00, 300.00, 400.00, 500.00 };
static string types[5] = { "Tonsil", "Foot", "Knee", "Shoulder", "Appendix"            }   ;
static int didhave[5] = { 0, 0, 0, 0, 0 };


#endif

包含函数定义的 Surgery.h 类头文件的 cpp 文件： 我感觉自己好像完全迷失了，因为我已经为此工作了很长时间

#include <iostream>
#include "Surgery.h"
#include <string>
using namespace std;


void requestInput() {

string input;

while(input[0]!='1'){

cout << "Which types of surgery did the patient have? 1) for finished.\n";
cin >> input;

if(input[0]=='T' || input[0]=='t')
didhave[0]=1;
else if(input[0]=='F' || input[0]=='f')
didhave[1]=1;
else if(input[0]=='K' || input[0]=='k')
didhave[2]=1;
else if(input[0]=='S' || input[0]=='s')
didhave[3]=1;
else if(input[0]=='A' || input[0]=='a')
didhave[4]=1;
else
cout << "Invalid Surgery Type.";
}
}

float sendTotal() {
int i;
float total;

for(i=0; i<5; i++){
if(didhave[i]==1)
total+=costs[i];
}
return total;
}

主要：

#include <iostream>
#include "Surgery.h"

int main(void){

Surgery surgeries;

surgeries::requestInput();

system("pause");
return 0;
}

Answer 1

你需要在某处定义函数'main'，这是进程的入口点