| 1. | All other white - space characters remain as they are
所有其他空格字符保持不变。 |
| 2. | The shell separates arguments on space characters
Shell用空格字符隔开参数。 |
| 3. | If omitted , the space character is used
如果省略该参数，则使用空白字符( " ) 。 |
| 4. | For a list of escaped white - space characters , see
（有关转义空白字符的列表，请参见 |
| 5. | Used to insert space characters in the output , where
用于在输出中插入空白字符，其中 |
| 6. | White space characters are the following unicode characters
空白字符为下列unicode字符： |
| 7. | Is the number of space characters to insert
是要插入的空白字符数。 |
| 8. | Any white - space characters at the start and end are trimmed
修整开头和结尾处的所有空格字符。 |
| 9. | Contains or starts with a space character
含有空格或以空格开头。 |
| 10. | Matches any non - white - space character
与任何非空白字符匹配。 |
