三、运行测试结果。

xxx@ubuntu:/opt$ ./test.sh 
on any argument!
xxx@ubuntu:/opt$ ./test.sh android
Input is android
xxx@ubuntu:/opt$ ./test.sh youtube
Input is youtube
xxx@ubuntu:/opt$ ./test.sh twitter
Input is twitter
xxx@ubuntu:/opt$ ./test.sh stone
on any argument!
xxx@ubuntu:/opt$ ./test.sh trump stone
Input is trump and stone