是得到（）被认为是C函数或C ++函数？ [英] Is gets() considered a C function or a C++ function?

问题描述

#include <iostream>
using namespace std;

void main(){
    char name[20];
    gets(name);
    cout<<name<<endl;
}

我无法找到答案的谷歌，函数获得（）是C或C ++语言的功能？因为在大学，我只能使用C ++函数。

I can't found answer in google, function gets() is C or C++ language function ? Because in university I must use only C++ functions.

推荐答案

获得（）是一个C函数可追溯至20世纪60年代，它不会做边界检查，是认为是危险的，是一直都保持这几年的兼容性而不是其他。

gets() is a C function dating to the 1960's, it does not do bounds checking and is considered dangerous, is has been kept all this years for compatibility and nothing else.

在您的有效code和建议C ++应该是：

Your code in valid and recommended C++ should be:

#include <iostream>
using namespace std;

int main(){
    // C style NULL terminated string NOT the same as a C++ string datatype 
    //char name[20];
    string name;// C++ string datatype, meant to use with C++ functions and features
    cin >> name;
    cout<<name<<endl;
    return 0;
}

您应避免与C ++的功能，作为字符串数据类型/对象混合C特定功能。有办法同时使用，但作为初学者，你应该坚持一个或另一个。

You should avoid to mix C specific features with C++ features as the string datatype/object. There are ways to use both, but as beginner you should stick to one or the other.

我个人recomendation，做C首先，ADN再过渡到C ++。大多数C ++程序员在纯C坏，C语言来第一次，并作为C ++的基础环境，但两人都在很多方面，你可以想像随着时间的推移分道扬镳。

My personal recomendation, do C first, adn then transition to C++. Most C++ programmers are bad at pure C, the C language came first, and was used as the foundation environment for C++, but both have grown apart with time in more ways that you can imagine.

所以，除非你是sim​​ultaneosly用C ++学习面向对象，所有你需要做的是code用C与C ++编译器。 C ++也非常大，比较C.模板和面向对象编程设施作为原因首先使用C ++。

So unless you are studying object orientation simultaneosly with C++, all you will do is code in C with a C++ compiler. C++ is also very large in comparison to C. Templates and Object Oriented Programming facilities being the reasons to use C++ in the first place.

用纯C仍然是伟大的很多事情，是小而优雅。它更容易获得熟练位于C比C ++。 C ++已经成长为大可管理不拘一格的任何开发者团队同意功能的子集。

Pure C is still great for many things, is small and elegant. Its easier to get proficient at C than C++. C++ has grown to much to be manageable without sticking to a subset of features agreed by any developer team.

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