C++ “endl”和“\n”之间的区别
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Difference between "endl" and "\n"
提问by Nawaz
Possible Duplicate:
C++: “std::endl” vs “\n”
可能的重复：
C++：“std::endl”与“\n”
I'm wondering if there is any significantdifference between these two ways to print newline :
我想知道这两种打印换行符的方式是否有任何显着差异：
cout << endl; //approach1
cout << "\n"; //approach2
Is there any practical difference?
有什么实际区别吗？
回答by peoro
Yes, they're different.
是的，它们是不同的。
"\n"is just a string of length 1 that gets appended to stdout.
"\n"只是附加到标准输出的长度为 1 的字符串。
std::endl, instead, is an object that will cause to append the newline character ("\n") AND to flush stdout buffer. For this reason it will take more processing.
std::endl，相反，是一个对象，它将导致附加换行符 ( "\n") 并刷新标准输出缓冲区。出于这个原因，它将需要更多的处理。
