nonspace
美
英 
例句
Remove trailing spaces to the last nonspace character or to a single-space character for strings made up of only spaces.
删除最后的非空格字符后面的尾随空格,而对于只由空格组成的字符串,一直删除到只留下一个空格。
Built-in metadata functions raise an error if the truncation would result in the loss of nonspace characters.
如果截断导致丢失非空格字符,则内置元数据函数会引发错误。