csdnIwascome的专栏

题目描述The WHU ACM Team has a big cup, with which every member drinks water. Now, we know the volume of the water in the cup, can you tell us it height?The radius of the cup‘s top and bottom

- - - - - - - - - -- - - - - - - -- -- - - - - - - - - - - - -  - - - - - - - - -  -- - - - - ---- -  - -- --- -sp_addextendedproperty    [ @name = ] { 'property_name' }    [ , [ @value = ] { 'v

一、校验数字的表达式1 数字：^[0-9]*$2 n位的数字：^\d{n}$3 至少n位的数字：^\d{n,}$4 m-n位的数字：^\d{m,n}$5 零和非零开头的数字：^(0|[1-9][0-9]*)$6 非零开头的最多带两位小数的数字：^([1-9][0-9]*)+(.[0-9]{1,2})?$7 带1-2位小数的正数或负数：^(\-