33.【C/C++ char 类型与Ascii大整合，少一个没考虑你打我】（二）

#include <iostream>
using namespace std;
int main()
{
 char* s; //字符串指针变量
 s = "hello"; //把字符串赋值给字符串指针，编译器会给字符串一个地址;
 cout<<"字符串的地址:"<<&s<<endl; //表示变量本身所在的内存单元地址
 cout<<"字符串的地址:"<<s<<endl; //表示s的单元所保存的地址
 cout<<"字符串指针的值为:"<<s[1]<<endl; //这里会输出字符串的首个元素，而不是整个字符串
 cout<<"字符串指针分配的单元:"<<sizeof(s)<<endl; //用来保存地址的
 return 0;
}

#include <iostream>
using namespace std;
int main()
{
 const char* s = "abc";
 const char* s1 = "abc";
 if (s == s1)
 {
  cout << "相等" << endl;
 }
 else
  cout << "不相等" << endl;
 return 0;
}

#include <iostream>
#include <string.h>
using namespace std;
int main()
{
 string s = "abc";
 string s1 = "abc";
 if (s==s1)
 {
  cout << "相等" << endl;
 }
 else
  cout << "不相等" << endl;
 return 0;
}

#include <iostream>
#include <string.h>
using namespace std;
int main()
{
 string s = "abc";
 const char* s1 = "abc";
 if (s==s1)
 {
  cout << "相等" << endl;
 }
 else
  cout << "不相等" << endl;
 return 0;
}

#include <iostream>
#include <string.h>
using namespace std;
int main()
{
 const char* s = "abc";
 const char* s1 = "abc";
 if (strcmp(s ,s1)==0)
 {
  cout << "相等" << endl;
 }
 else
  cout << "不相等" << endl;
 return 0;
}

#include <iostream>
#include <string.h>
using namespace std;
int main()
{
 string s = "abc";
 const char* s1 = "abc";
 if (strcmp(s ,s1)==0)
 {
  cout << "相等" << endl;
 }
 else
  cout << "不相等" << endl;
 return 0;
}

#include <iostream>
using namespace std;
void main()
{
 char s1[]="ABC"
  "DEF";
//********error********
 char s2[]="ABC\
DEF";
//********error********
 char s3[]="ABC" 
  "DEF";
 cout<<s1<<endl;
 cout<<s2<<endl;
 cout<<s3<<endl;
 return;
}
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原文链接：https://blog.csdn.net/qq_69683957/article/details/125842311