Swift 修改UITextField.Placeholder颜色

StoreNameEditTextField.attributedPlaceholder = NSAttributedString(string:"点此处输入门店名称",attributes:[NSForegroundColorAttributeName: UIColor.blackColor()])
原文地址:https://www.cnblogs.com/yesicoo/p/Swift-xiu-gaiUITextFieldPlaceholder-yan-se.html