小编Gla*_*der的帖子

// include the basic windows header file
#include <windows.h>
#include <windowsx.h>

// the WindowProc function prototype LRESULT CALLBACK WindowProc(HWND hWnd,
                         UINT message,
                         WPARAM wParam,
                         LPARAM lParam);

// the entry point for any Windows program int WINAPI WinMain(HINSTANCE hInstance,
                   HINSTANCE hPrevInstance,
                   LPSTR lpCmdLine,
                   int nCmdShow) {
    // the handle for the window, filled by a function
    HWND hWnd;
    // this struct holds information for the window class
    WNDCLASSEX wc;

    // clear out the window class for use
    ZeroMemory(&wc, sizeof(WNDCLASSEX));

    // fill …

我得到这个代码：

    System.out.println("Enter the brand and cash value");

    String brand = keyboard.nextLine();

    long cash = keyboard.nextDouble();
    String buffer = keyboard.nextLine();

但即使我输入了要与之比较的确切字符串值，它也无法识别它们是相同的。奇怪的是，当我输入这个时：

compare[0] = new Car ("BMW", 12.00);

而不是这个：

compare[0] = new Car (brand, 12.00);

有用

我也使用等于：

public boolean equals(Car other)
{
    if (other == null)
    {
        return false;
    }

    if(this.brand == other.brand && this.cash == other.cash)
    {
        return true;
    }
    else
    {
        return false;
    }
}

 int len = GetWindowTextLengthW(hwndEdit) + 1;
 wchar_t text[len];

我明白了

错误2错误C2466:无法分配常量大小的数组0
错误3错误C2133:'text':未知大小
错误1错误C2057:预期的常量表达式

我不明白为什么它不会编译,因为GetWindowTextLengthW(hwndEdit)+ 1> 0

null + 1 = 1不是真的吗？