无法将'UIImage'类型的值转换为期望的参数类型'String'

Question

我迷路了，还有其他的选择吗？

let swiftCourse = Course(buttonImage: #imageLiteral(resourceName: "cover_developer"), 
        title: "Become a Developer", 
        instructor: "Duc Tran", 
        featureImage: #imageLiteral(resourceName: "developer"), 
        introductionVideoURL: URL(String: "https://www.youtube.com/watch?v=Inn2K-V3NFI"), 
        description: "Lorem ipsum dolor sit er elit lamet, consectetaur cillium adipisicing pecu, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Nam liber te conscient to factor tum poen legum odioque civiuda.") 

Answer 1

替换你的代码，并尝试：

let swiftCourse = Course(buttonImage:"cover_developer", 
        title: "Become a Developer", 
        instructor: "Duc Tran", 
        featureImage: "developer", 
        introductionVideoURL: URL(String: "https://www.youtube.com/watch?v=Inn2K-V3NFI"), 
        description: "Lorem ipsum dolor sit er elit lamet, consectetaur cillium adipisicing pecu, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum. Nam liber te conscient to factor tum poen legum odioque civiuda.") 

Answer 2

的方式你Course类设置，想必是期待一个字符串。

将构造函数中的参数更改为"cover_developer"。