Event before the values are written . if the only settings defined are application - scoped settings , 如果唯一定義的設(shè)置是應(yīng)用程序范圍設(shè)置,則在使用默認(rèn)的
Consequently , the rule in the standard that says that there must be a unique definition of a class , template , etc . , is phrased in a somewhat more complicated and subtle manner 因此,標(biāo)準(zhǔn)中那些指出只能有類和模板唯一定義的規(guī)則,也被表達(dá)成了一種更加復(fù)雜和微妙的方式。