我用这个代码比较,如果让在迅速?
if let breedVaccRecorddStr = self.petInfoDict.objectForKey("breedvaccinationrecord") {
}else{
ALToastView.toastInView(UIApplication.sharedApplication().keyWindow, withText: "No Data Found")
}
这是我的回应
{
breed = dabour;
breedvaccinationrecord = "";
"city_registration" = 123146515;
"date_of_birth" = "12-10-2014";
"emergency_contacts" = 1245749876;
gender = male;
"owner_name" = Environmental;
"pt_id" = 4150;
"pt_images" = "";
"pt_name" = demo123;
ptinfo = "http://www.petcsi.com/wp-content/uploads/2015/12/jacky42.jpg";
"prop_name" = "Bella Vida Estates";
"qr_tag" = 5215653454;
species = test;
"vaccination_records" = test123;
vaccinationrecord = "";
"vet_info" = "";
},
常量不能是零,因此执行,如果块。但我期待输出“没有数据”。他们可能是图像URL在那个关键如何检查这个?
breedvaccinationrecord give may image url我想检查它没有。 –
你的代码已经检查'breedvaccinationrecord'不是零。我不明白你的问题。 – Michael
我得到“”字符串如果让块。 –