字符串数组 与 字符串指针 区别

#include <iostream>

using namespace std;


int main(int argc, char* argv[])
{
    char bufferArray[] = "abc";
    cout << "bufferArray = " << bufferArray << endl;
    //
    // Change OK
    //
    bufferArray[0] = 'A';
    cout << "--------------------------------------------------" << endl;
    cout << "After Change" << endl;
    cout << "bufferArray = " << bufferArray << endl;


    char* bufferPointer = "abc";
    cout << "bufferPointer = " << bufferPointer << endl;

    bufferPointer[0] = 'A';    // Run-Time Error
    cout << "--------------------------------------------------" << endl;
    cout << "After Change" << endl;
    cout << "bufferPointer = " << bufferPointer << endl;
    return 0;
}

运行结果如下:

bufferArray = abc

--------------------------------------------------

After Change

bufferArray = Abc

bufferPointer = abc

Bus error: 10

因此说明了一件事，
字符串常量 如果赋值给一个字符数组，那么这个字符串中的信息是可以被修改的
字符串常量 如果赋值给一个字符串的指针，那么这个字符串的信息是不可以被修改的