<p>请将下列程序补充完整。<br><img src="https://learnfile.20230611.cn/learnAppQuestion/80/ab/80abfb0f077fa5e91afc340e6b709713.png" style="width: 100%;height: auto;"><br><img src="https://learnfile.20230611.cn/learnAppQuestion/c5/e4/c5e493620a7f74b6eb98e7ef3f58d2