c – 如果语句不起作用,则跳过其他部分
发布时间：2020-12-16 07:20:29 所属栏目：百科 来源：网络整理
导读：//this is my source file,.cpp#include iostream#include string#include "kingdom.h"namespace westeros{ void display(Kingdom pKingdom[],int kingdomElement,string KingdomName){ cout " ---------------- " endl; cout " Searching for kingdom " Kin
//this is my source file,.cpp
#include <iostream>
#include <string>
#include "kingdom.h"
namespace westeros{
void display(Kingdom pKingdom[],int kingdomElement,string KingdomName){
cout << " ---------------- " << endl;
cout << " Searching for kingdom " << KingdomName << " in westeros " << endl;
for(int i=0; i<kingdomElement; i++){
if (pKingdom[i].m_name == KingdomName){
cout << " --------------------- " << endl;
cout << KingdomName << ",population " << pKingdom[i].m_population << endl;
cout << " --------------------- " << endl;
}
else{
cout << " --------------------- " << endl;
cout << KingdomName << " is not part of Westeros. " << endl;
cout << " --------------------- " << endl;
}
}
}
}
//this is my main file
#include <iostream>
#include "kingdom.h"
#include <string>
using namespace std;
using namespace westeros;
int main(void){
int count = 0;
Kingdom* pKingdoms = nullptr;
pKingdoms = new Kingdom[count];
display(pKingdoms,count,"Mordor");
display(pKingdoms,"The_Vale");
delete[]pKingdoms;
pKingdoms = nullptr;
return 0;
}
//this is my header file
#ifndef KINGDOM_H_
#define KINGDOM_H_
using namespace std;
namespace westeros{
class Kingdom{
public:
char m_name[32];
int m_population;
};
void display(Kingdom pKingdom[],string KingdomName);
}
#endif
现在它打印 魔多不属于维斯特洛 The_Vale不是维斯特洛的一部分 解决方法
也许您只是忘了将The_Vale添加到pKingdoms数组中.
所以,这样的事情会让你明白你做错了什么： 在主文件中你可以改进它,如下所示,所有其他文件都可以;) //this is my main file
#include <iostream>
#include "kingdom.h"
#include <string.h>
using namespace std;
using namespace westeros;
int main(void){
int count = 0;
// Kingdom* pKingdoms = nullptr;
// pKingdoms = new Kingdom[count];
Kingdom* pKingdoms = new Kingdom[count]; // Might be a better choice,// as it reduces code.
display(pKingdoms,"Mordor"); // pKingdoms doesn't have Mordor
display(pKingdoms,"The_Vale"); // pKingdoms doesn't have The_vale
// Here I add the 'The_Vale to the array
strcpy(pKingdoms[0].m_name,"The_Vale");
pKingdoms[0].m_population = 1000;
display(pKingdoms,"The_Vale"); // pKingdoms have The_vale
delete[]pKingdoms;
pKingdoms = nullptr;
return 0;
}
在编辑之后,也许source.cpp中的这样的东西会有所帮助. //this is my source file,string KingdomName){
int flag = -1;
cout << " ---------------- " << endl;
cout << " Searching for kingdom " << KingdomName << " in westeros " << endl;
for(int i=0; i<kingdomElement; i++)
if (pKingdom[i].m_name == KingdomName)
flag = i;
if (flag != -1)
{
cout << " --------------------- " << endl;
cout << KingdomName << ",population " << pKingdom[flag].m_population << endl;
cout << " --------------------- " << endl;
}
else{
cout << " --------------------- " << endl;
cout << KingdomName << " is not part of Westeros. " << endl;
cout << " --------------------- " << endl;
}
}
}
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