摘要：int main() { char a[] = "12345"; char b[5] = "12345"; char c[100] = "12345"; printf("%d %d %d\n",strlen(a), strlen(b), strlen(c)); printf("%d %d %d\n" 阅读全文

摘要：widget.h中的代码 1 #ifndef WIDGET_H 2 #define WIDGET_H 3 #include <QWidget> 4 #include <QKeyEvent> 5 #include <QRectF> 6 #include <QPainter> 7 #include <Q 阅读全文

摘要：https://blog.csdn.net/nanfeibuyi/article/details/80295663?utm_medium=distribute.pc_relevant.none-task-blog-baidulandingword-1&spm=1001.2101.3001.4242 阅读全文

摘要：QT文件的新建，打开，保存https://blog.csdn.net/WQ_1996/article/details/78265279?utm_medium=distribute.pc_relevant_t0.none-task-blog-BlogCommendFromMachineLearnPai 阅读全文