将数据从结构初始化传递到另一个视图控制器

Question

我在将数据从.Swift文件中的struct init传递到另一个ViewController时遇到了问题。代码如下：

import Foundation

import SwiftSoup

enum HTMLError: Error {
    case badInnerHTML
}

struct GeneralitiesResponse {

    init(_ innerHTML: Any?) throws {
        guard let htmlString = innerHTML as? String else { throw
            HTMLError.badInnerHTML}
        let doc = try SwiftSoup.parse(htmlString)
        let names = try doc.getElementsByClass("name").array()
        let codes = try doc.getElementsByClass("usrname font_size_11 open_sans_condensed_bold").array()
        let schools = try doc.getElementsByClass("scuola").array()



        for i in 0..<names.count {
            let name = try names[i].text()
            let code = try codes[i].text()
            let school = try schools[i].text()

            print(name)
            print(code)
            print(school)
            print("")                                
        }                        
    }                                
}

我需要传递的是for in loop中的name - code - school。我该怎么做呢？我使用带有Swift3和SwiftSoup的Xcode进行解析。

Answer 1

注意在names[I]、codes[I]和schools[I]中使用for I in 0..<names.count和I，如果数组计数不同，就会崩溃。

这就是你想要做的。

import Foundation

import SwiftSoup

enum HTMLError: Error {
    case badInnerHTML
}

struct GeneralitiesResponse {
    let names: Array<Element>
    let codes: Array<Element>
    let schools: Array<Element>

    init(_ innerHTML: Any?) throws {
        guard let htmlString = innerHTML as? String else { throw
            HTMLError.badInnerHTML}
        let doc = try SwiftSoup.parse(htmlString)
        names = try doc.getElementsByClass("name").array()
        codes = try doc.getElementsByClass("usrname font_size_11 open_sans_condensed_bold").array()
        schools = try doc.getElementsByClass("scuola").array()
    }
}

这个函数应该在视图控制器中

func parse()throws {
        let gen = try GeneralitiesResponse("html")

        for i in 0..<gen.names.count {
            let name = try gen.names[i].text()
            print(name)
        }

        for i in 0..<gen.codes.count {
            let code = try gen.codes[i].text()
            print(code)
        }

        for i in 0..<gen.schools.count {
            let school = try gen.schools[i].text()
            print(school)
        }
    }