cin。getline
时间: 2023-09-14 16:15:09 浏览: 49
您好!感谢您的提问。cin.getline() 是 C++ 中的一个函数,用于从输入流中读取一行字符串。它的语法如下:
```cpp
#include <iostream>
using namespace std;
int main() {
char str[256];
cout << "请输入字符串:";
cin.getline(str, sizeof(str));
cout << "您输入的字符串是:" << str << endl;
return 0;
}
```
在这段代码中,我们使用了 cin.getline() 函数来读取用户输入的字符串,并将其存储在字符数组 str 中。函数的第一个参数是存储用户输入的字符数组,第二个参数是字符数组的最大长度。
如果您有任何其他问题,请随时提问!
相关问题
cin getline
"Cin" and "getline" are both input functions in C++. "Cin" is used to read input from the standard input stream (usually the keyboard), while "getline" is used to read a line of text from any input stream (such as a file or network connection) and store it as a string.
The syntax for using "cin" is as follows:
```c++
#include <iostream>
int main() {
int num;
std::cout << "Enter a number: ";
std::cin >> num;
std::cout << "You entered: " << num << std::endl;
return 0;
}
```
The syntax for using "getline" is as follows:
```c++
#include <iostream>
#include <string>
int main() {
std::string input;
std::cout << "Enter some text: ";
std::getline(std::cin, input);
std::cout << "You entered: " << input << std::endl;
return 0;
}
```
In the first example, the user is prompted to enter a number, which is then stored in the variable "num" using "cin". In the second example, the user is prompted to enter some text, which is then stored in the string variable "input" using "getline".
getline(cin,s)和cingetline
getline(cin, s)和cin.getline的功能类似,都是从输入流中读取一行字符串,并将其存储在字符串变量中。不同之处在于,getline函数可以读取包含空格的字符串,而cin.getline则只能读取空格前的字符串,并且需要指定读取字符串的最大长度。