C++ Direct Court Pointer Name Meaning?

Time:2019-10-8

First, look at the following code example:


#include <iostream>
using namespace std;
int main()
{
 char *str = "this is a test";
 cout << "str=" << str << endl;
 cout << "*str=" << *str << endl;
 cout << "&str" << &str << endl;
 system("pause");
 return 1;
}

The output results are as follows:

See some examples of direct useCout * pointer nameAt first, I felt very confused. I thought I would output the pointer directly. The output was the content stored in the memory pointed by the pointer until the end of reading the “/0” sign. Later, it was found that this was a pre-set rule of the compiler, and that was the output of the compiler. In addition, if * STR is used directly, where the str pointer variable stores the first address of the variable it points to, then the content of * STR output is naturally easy to understand the first character of the pointer pointing to the content.

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