如何在UIImage上绘制文本以创建新图像

// 原始图像
let originalImage = UIImage(named: "originalImage")

// 创建图形上下文
UIGraphicsBeginImageContextWithOptions(originalImage.size, false, 0.0)

// 绘制原始图像
originalImage.draw(in: CGRect(x: 0, y: 0, width: originalImage.size.width, height: originalImage.size.height))

// 设置文本属性
let text = "Hello, World!"
let attributes: [NSAttributedString.Key: Any] = [
    .font: UIFont.systemFont(ofSize: 20),
    .foregroundColor: UIColor.red
]
let attributedText = NSAttributedString(string: text, attributes: attributes)

// 绘制文本
attributedText.draw(with: CGRect(x: 0, y: 0, width: originalImage.size.width, height: 50), options: .usesLineFragmentOrigin, context: nil)

// 获取新图像
let newImage = UIGraphicsGetImageFromCurrentImageContext()

// 结束图形上下文
UIGraphicsEndImageContext()