34 lines
944 B
C++
34 lines
944 B
C++
//
|
||
// Created by violet on 2026/2/28.
|
||
//
|
||
#include "cstring"
|
||
|
||
#include "iostream"
|
||
using namespace std;
|
||
int main() {
|
||
//==相等 !=不等 >大于 <小于 <=小于等于>=大于等于
|
||
int num1 =3;
|
||
int num2 =4;
|
||
bool r1 = (num1!=num2);
|
||
cout<<r1<<endl;
|
||
//字符串要用strcmp比较，否则只能比较内存地址
|
||
char s1[]="hello";
|
||
char *s2 = "hello";
|
||
cout<<(strcmp(s1,s2))<<endl;
|
||
char s3[] = "a";
|
||
char *s4 = "b";
|
||
cout<<(strcmp(s4,s3))<<endl;
|
||
|
||
cout<<"字面量字符串"<<strcmp("a","b")<<endl;
|
||
//只要有一个c++风格的字符串，就可以用比较运算符来比较，比较他们的值而不是内存地址
|
||
string s5 = "a";//c++风格字符串
|
||
string s6 = "a";
|
||
cout<<(s5== s6)<<endl;
|
||
cout<<(1==1 && 2==2)<<endl;
|
||
cout<<(1==2 && 2==2)<<endl;
|
||
cout<<(1==2 || 2==3)<<endl;
|
||
cout<<(1==2 || 2==2)<<endl;
|
||
bool s123 = 100;
|
||
cout<<(s123)<<endl;
|
||
return 0;
|
||
} |