Tezos Blockchain Time dans Smartpy

Comme vous avez déjà découvert,l'attribut sp.now doit vous donner accès à l'horodatage actuel.Vouspouvez voir unexemple de cetteméthode dans l'exemple "mini-kitties" que vouspouvez charger dans le SmartPy.io Ide (fichier > modèle de chargement > mini-kitties ).Spécifiquement dans lepoint d'entrée acheter ,voustrouverez:

  @ sp.Entrypoint
Def Acheter (auto,paramètres):
    Kitty=Self.Data.kitties [Params.kittyid]
    sp.verify (sp.mutez (0) & lt; kitty.price)
    sp.verify (kitty.price & lt;=param .price)
    sp.verify (sp.amount==param.price)
    sp.Send (Kitty.owner,Params.Price)
    kitty.owner=sp.Sverver
    SP.IF Kitty.isnew:
        kitty.isnew=faux
        Kitty.auduction=SP.NOW.Addseconds (Self.NewAuctionDuration)
    sp.verify (sp.Now & lt;=kitty.auduction)
    SP.IF SP.NOW & LT;=Kitty.auduction:
        kitty.price=param.price + sp.MuteZ (1)
 

As you have already discovered, the sp.now attribute should give you access to the current timestamp. You can see an example of this method in the "Mini-kitties" example that you can load in the SmartPy.io IDE (File > Load Template > Mini Kitties). Specifically in the entry point buy, you'll find:

@sp.entryPoint
def buy(self, params):
    kitty = self.data.kitties[params.kittyId]
    sp.verify(sp.mutez(0) < kitty.price)
    sp.verify(kitty.price <= params.price)
    sp.verify(sp.amount == params.price)
    sp.send(kitty.owner, params.price)
    kitty.owner = sp.sender
    sp.if kitty.isNew:
        kitty.isNew = False
        kitty.auction = sp.now.addSeconds(self.newAuctionDuration)
    sp.verify(sp.now <= kitty.auction)
    sp.if sp.now <= kitty.auction:
        kitty.price = params.price + sp.mutez(1)

Utilisez simplement 'SP.NOW',pas 'SP.NOW ()' ou autre chose.Cen'estpas uneméthode,c'est uneexpression quifait ce que vous voulez.

Simply use 'sp.now', not 'sp.now()' or anything else. It's not a method, it's an expression that happens to do what you want.