8月21日，部分网友反馈钉钉文档崩了。随后，钉钉官方账号发文回应称：因使用流量突增，钉钉文档于16时14分出现部分用户访问异常，经紧急处理已于16时19分完全恢复，感谢大家谅解！图源：当事方社交账号8月21日上午，#WPS崩了#话题冲上热搜，引起网友热议。
It is important to recognize that what the user thinks of as a “character”—a basic unit of a writing system for a language—may not be just a single Unicode code point. Instead， that basic unit may be made up of multiple Unicode code points. To avoid ambiguity with the computer use of the term character， this is called a user-perceived character. For example， “G” + acute-accent is a user-perceived character: users think of it as a single character， yet is actually represented by two Unicode code points. These user-perceived characters are approximated by what is called a grapheme cluster， which can be determined programmatically.
