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 linethis is the third lineethis is the fifth lineFirstSecondSecond23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;}

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