许多程序将数据存放在文本文件中,使用逗号、制表符或者冒号隔开数据域;您需要拒绝含有这些值的数据或者对其进行编码。
Many programs store data in text files, and separate the data fields with commas, tabs, or colons; you'll need to reject or encode user data with those values.
需要注意的一个重点是在sql语句中使用以冒号界定的替换操作符。
One important thing to note is the use of the colon delimited replacement operators in the SQL statements.
选项字母后的冒号(:)表示该选项需要一个值;例如,- f选项可能用于表示文件名,tar命令中就是如此。
A colon (:) after an option letter indicates that the option requires a value; for example, a -f option might be used to indicate a file name, as in the tar command.
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