c++换行符知识点总结
时间：2021-04-03 07:46:43|栏目：.NET代码|点击： 次
c++换行符有哪些
\n 换行，光标移到下一行的开头；
endl，把缓冲槽的内容输出到控制台；
\r 回车，光标移到当前行的开头，不会换到下一行，如果接着输出的话，本行以前的内容会被逐一覆盖；
#include <iostream>
using namespace std;
int main()
{
cout << "this is the first line\n";
cout << "this is the second line\r";
cout << "this is the third line\n";
cout << "this is the fouth line\r";
cout << "this is the fifth line\n";
cout<<"First"<<"\n"<<"Second"<<endl;
cout<<"First123"<<"\r"<<"Second"<<endl;
cout<<"这是换"<<endl<<"行符";
return 0;
}
结果：
this is the first line this is the third linee this is the fifth line First Second Second23 这是换 行符 Presss any key to continue
内容补充：
关于遇到的问题实例：
遇到\r获取\n的时候，替换为\0.
#include<string.h>
#include<stdio.h>
int main(int argc, char *argv[])
{
char str[128];
while (fgets(str, 127, stdin)) {
char *tmp = NULL;
//去掉换行符
if (tmp = strstr(str, "\n"))
*tmp = '\0';
//去掉回车符
if (tmp = strstr(str, "\r"))
*tmp = '\0';
printf("---%s---\n", str);
}
return 0;
}
