添加了一些注释，修正了一些错误 #1

Merged

p9j8zlmnf merged 3 commits from lhn into master

Author	SHA1	Message	Date
Marcus	6fa32305a6	添加了tool中多处注释	3 years ago
Marcus	b6330b512e	Merge remote-tracking branch 'origin/master' into lhn	3 years ago
Marcus	8f0bee1262	添加了Data中多处注释	3 years ago