cin reads the standard input

最新推荐文章于 2024-10-16 09:21:55 发布
原创 最新推荐文章于 2024-10-16 09:21:55 发布 · 404 阅读 · 0 ·
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#input #whitespace #character #string #tabs #types

本文深入解析了字符串输入操作，包括如何读取并忽略前导空白字符，与其他类型如整数、字符的相似之处。

 

 

The string input operator:

1. Reads and discards any leading whitespace (e.g., spaces, newlines, tabs)

2. It then reads characters until the next whitespace character is encountered

 

It is the same with other types, such as int, char;

cin详解
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输入原理： 程序的输入都建有一个缓冲区，即输入缓冲区。一次输入过程是这样的，当一次键盘输入结束时会将输入的数据存入输入缓冲区，而cin函数直接从输入缓冲区中取数据。正因为cin函数是直接从缓冲区取数据的，所以有时候当缓冲区中有残留数据时，cin函数会直接取得这些残留数据而不会请求键盘输入 #include <iostream> using namespace std; int main() {
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