在C语言中,与DateTime
不同,我不能对DateOnly
个变量使用减法.有什么解释吗?
var a = new DateTime(2000, 01, 01);
var b = new DateTime(1999, 01, 01);
//var c = a.Subtract(b);
var c = a - b;
var d = new DateOnly(2000, 01, 01);
var e = new DateOnly(1999, 01, 01);
var f = d - e; // Error - Operator '-' cannot be applied to operands of type 'DateOnly' and 'DateOnly'