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;
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#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:
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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.
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#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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