摘要： 1.unicode环境下字符转换问题代码：char szChar[20]; sprintf_s(szChar,"char is %d",wParam); MessageBox(hwnd,szChar,"char_test",0);报错：不能将参数 2 从“char [20]”转换为“LPCWSTR”解决办法：要么 char szChar[20]; sprintf_s(szChar,"char is %d",wParam); MessageBoxA(hwnd,szChar,"char_test",0); 要么 wch 阅读全文