lexicographicallyPrecedes
全部标签一、contains返回一个布尔值，指示序列的每个元素是否满足给定的条件。如果有一个满足即返回。letexpenses=[21.37,55.21,9.32,10.18,388.77,11.41]lethasBigPurchase=expenses.contains{$0>100}//'hasBigPurchase'==trueSequence协议源码@inlinablepublicfunccontains(_element:Element)->Bool{ifletresult=_customContainsEquatableElement(element){returnresult}else{
一、contains返回一个布尔值，指示序列的每个元素是否满足给定的条件。如果有一个满足即返回。letexpenses=[21.37,55.21,9.32,10.18,388.77,11.41]lethasBigPurchase=expenses.contains{$0>100}//'hasBigPurchase'==trueSequence协议源码@inlinablepublicfunccontains(_element:Element)->Bool{ifletresult=_customContainsEquatableElement(element){returnresult}else{
