Question

我正在编写以下功能：

override func viewDidAppear(_ animated: Bool) {

    // I have did sample for you by taking .pdf from bundle.
    if let pathPDF = Bundle.main.path(forResource: "sample", ofType: "pdf") {

        let path = NSSearchPathForDirectoriesInDomains(FileManager.SearchPathDirectory.documentDirectory, FileManager.SearchPathDomainMask.userDomainMask, true)
        let documentDirectoryPath:String = path[0]
        let fileManager = FileManager()
        var destinationURLForFile = URL(fileURLWithPath: documentDirectoryPath.appending("/NewFileiCloud"))
        do {
            //You have to create directory with above name.
            try fileManager.createDirectory(at: destinationURLForFile, withIntermediateDirectories: true, attributes: nil)
            destinationURLForFile.appendPathComponent("reader.pdf")

            //YOUR PDF URL [pathPDF [my bundle path, you have to give your URL]] to DATA
            let pdfData = try Data(contentsOf: URL(fileURLWithPath: pathPDF))  

            // WRITE ITS CONTENT to Doc.Dir.
            try pdfData.write(to: destinationURLForFile, options:.atomic)

            //ASSIGN PATH TO GLOBAL URL VARIABLE
            fullPAth = destinationURLForFile


            print("conclude     ", destinationURLForFile)

            uploadToServer()

        }
        catch(let error){
            print(error)
        }

    }
}


func uploadToServer() {

    .....

    do {

        // Here you can get PDF contents as Data.
        // With this Data, you can pass to Server Side.
        let pdfPOSTData = try Data(contentsOf: fullPAth!)
    }
    catch let e{
        print("Catch_Not_worlk    ",  e)
    }

    ......
}

这样做的目的是将tmux() { if [ "$1" = "menu" ]; then if [ ! -n "$TMUX" ] && [[ $(tmux ls | head -n 1) == *"created"* ]]; then selection=$(tmux ls | fzf -m | cut -f 1 -d " ") tmux attach -t ${selection: : -1} fi else command tmux $@ fi }用管道传输到tmux ls中，以生成用于选择tmux会话的菜单。

这很好用，但是如果我不想选择任何东西，然后按fzf，它将返回：

CTRL-C

到底有没有抑制它或阻止它打印在第一位？

在shell函数中调用命令时如何防止？

0 个答案: