, and extends to the next line-end character (Enter key). Everything that lies in between is ignored and is not printed out. If there are percent signs in the text, they are treated as part of the text.
开头，并且延续到下一个行尾字符（Enter 键）。其间的所有内容都将被忽略并且不会打印输出。如果文本中存在百分号，则会将其视为文本的一部分。