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()
dG9vbHMgPSBbIkxhYmVsTWUiLCJWSUEiLCJDVkFUIl0KcHJpbnQoIj0iKjQwKQpwcmludCgi5bel5YW35YiX6KGoIikKcHJpbnQoIuWIm+W7uueahOWIl+ihqOWGheWuueS4ujoiLHRvb2xzKQpwcmludCgi5YiX6KGo6ZW/5bqmKOW3peWFt+S4quaVsCk6IixsZW4odG9vbHMpKQpwcmludCgi56ys5LiA5Liq5bel5YW35pivOiIsdG9vbHNbMF0pCnByaW50KCLmnIDlkI7kuIDkuKrlt6XlhbfmmK86Iix0b29sc1stMV0pCnByaW50KCk=