此内容没有您所选择的语言版本。8.3. Integer extractorsdownload PDF The following functions provide methods to extract information about integer values. 8.3.1. @count(s) This statement returns the number of all values accumulated into s. 8.3.2. @sum(s) This statement returns the total of all values accumulated into s. 8.3.3. @min(s) This statement returns the minimum of all values accumulated into s. 8.3.4. @max(s) This statement returns the maximum of all values accumulated into s. 8.3.5. @avg(s) This statement returns the average of all values accumulated into s. 前一个下一个