vs2017在将类的声明与实现分离时报错

[徐加朋]

 #include "iostream"         //Couirer.h
#include "string"
#include "string.h"
#include "pch.h"

#pragma once
using namespace std;
class Couirer{              //快件
private:
	string Couirer_number;      //快递单号
	string Couirer_company;     //快递公司
	string Recipient_name;      //收件人
	string Recipient_pnumber;   //收件人联系电话
	string Recipient_stress;    //收件人地址
	string Recipient_zipcode;   //收件人邮编
	string Sender_name;         //寄件人
	string Sender_pnumber;      //寄件人联系电话
	string Sender_stress;       //寄件人地址
	string Sender_zipcode;      //寄件人邮编
	int flag = 1;                 //快递状态
public:
	void setCouirer_number(string Couirer_numberr);      //输入快递单号
	string getCouirer_number();
	void setCouirer_company(string Couirer_companyy);    //输入快递公司
	string getCouirer_company();
	void setRecipient_name(string Recipient_namee);      //输入收件人
	string getRecipient_name();
	void setRecipient_pnumber(string Recipient_pnumberr);  //输入收件人联系电话
	string getRecipient_pnumber();
	void setRecipient_stress(string Recipient_stresss);    //输入收件人地址
	string getRecipient_stress();
	void setRecipient_zipcode(string Recipient_zipcodee);  //输入收件人邮编
	string getRecipient_zipcode();
	void setSender_name(string Sender_namee);        //输入寄件人
	string getSender_name();
	void setSender_pnumber(string Sender_pnumberr);  //输入寄件人联系电话
	string getSender_pnumber();
	void setSender_stress(string Sender_stresss);    //输入寄件人地址
	string getSender_stress();
	void setSender_zipcode(string Sender_zipcodee);  //输入寄件人邮编      
	string getSender_zipcode();
	int setflag();
	int getflag();
};

#include "Couirer.h"               //Couirer.cpp
#include "pch.h"

void Couirer::setCouirer_number(string Couirer_numberr) {     //输入快递单号
	Couirer_number = Couirer_numberr;
}
string Couirer::getCouirer_number() {
	return Couirer_number;
}
void Couirer::setCouirer_company(string Couirer_companyy) {    //输入快递公司
	Couirer_company = Couirer_companyy;
}
string Couirer::getCouirer_company() {
	return Couirer_company;
}
void Couirer::setRecipient_name(string Recipient_namee) {     //输入收件人
	Recipient_name = Recipient_namee;
}
string Couirer::getRecipient_name() {
	return Recipient_name;
}
void Couirer::setRecipient_pnumber(string Recipient_pnumberr) {  //输入收件人联系电话
	Recipient_pnumber = Recipient_pnumberr;
}
string Couirer::getRecipient_pnumber() {
	return Recipient_pnumber;
}
void Couirer::setRecipient_stress(string Recipient_stresss) {   //输入收件人地址
	Recipient_stress = Recipient_stresss;
}
string Couirer::getRecipient_stress() {
	return Recipient_stress;
}
void Couirer::setRecipient_zipcode(string Recipient_zipcodee) { //输入收件人邮编
	Recipient_zipcode = Recipient_zipcodee;
}
string Couirer::getRecipient_zipcode() {
	return Recipient_zipcode;
}
void Couirer::setSender_name(string Sender_namee) {       //输入寄件人
	Sender_name = Sender_namee;
}
string Couirer::getSender_name() {
	return Sender_name;
}
void Couirer::setSender_pnumber(string Sender_pnumberr) {    //输入寄件人联系电话
	Sender_pnumber = Sender_pnumberr;
}
string Couirer::getSender_pnumber() {
	return Sender_pnumber;
}
void Couirer::setSender_stress(string Sender_stresss) {    //输入寄件人地址
	Sender_stress = Sender_stresss;
}
string Couirer::getSender_stress() {
	return Sender_stress;
}
void Couirer::setSender_zipcode(string Sender_zipcodee) {  //输入寄件人邮编
	Sender_zipcode = Sender_zipcodee;
}
string Couirer::getSender_zipcode() {
	return Sender_zipcode;
}
int Couirer::setflag() {}
int Couirer::getflag() {
	return flag;
}

我一共写了4个类与实现，每一个报错形式类似，更换编译器为codeblocks就不会显示出错。
下面是图片

[WNs_ACE]

把#include "pch.h"放在#include "Couirer.h"上面，就是下面代码写法，原因好像是因为vs的预编译头文件的机制，会把#include "pch.h"上面的代码视为已经预编译了，所以不会把头文件拉进.cpp中，这样在编译的时候程序就找不到Couirer.h文件了，所以就会出错了

#include "pch.h"
#include "Couirer.h"

[徐加朋]

谢谢，可以正常使用了