我正在开发 C# 应用程序。我在一个表格上有三个字段。不确定哪种数据类型适合他们。一些帮助将不胜感激。
a: length of this field is 30 and it should be a positive integer
b: length of this field is 15 and it should be a decimal allowed positive number
c: length of this field is 15 and it should be a decimal allowed unsigned number
另外应该是以下数据类型:
a*b
a*c
b*c