tools=["LabelMe","VIA","CVAT"]
print("="*40)
print("工具列表")
print("创建的列表内容为:",tools)
print("列表长度(工具个数):",len(tools))
print("第一个工具是:",tools[0])
print("最后一个工具是:",tools[-1])
print()
dG9vbHM9WyJMYWJlbE1lIiwiVklBIiwiQ1ZBVCJdCnByaW50KCI9Iio0MCkKcHJpbnQoIuW3peWFt+WIl+ihqCIpCnByaW50KCLliJvlu7rnmoTliJfooajlhoXlrrnkuLrvvJoiLHRvb2xzKQpwcmludCgi5YiX6KGo6ZW/5bqmKOW3peWFt+S4quaVsCk6IixsZW4odG9vbHMpKQpwcmludCgi56ys5LiA5Liq5bel5YW35piv77yaIix0b29sc1swXSkKcHJpbnQoIuacgOWQjuS4gOS4quW3peWFt+aYr++8miIsdG9vbHNbLTFdKQpwcmludCgp