Question

我可以使用image1，image2 .... n重命名下载的附件。

但它只显示blank file，并使用名称重命名...但如何提供扩展程序以显示附件？

我正在使用rename函数，该函数适用于我的代码，

我将如何添加扩展程序？

rename($image, $all);

（使用上述名称重命名下载的文件）

Answer 1

尝试扩展您的名字：

rename($image, $newtname.'.jpeg')

或

rename($image, $newtname.'.png')

等

Answer 2

尝试

game = do
         putStrLn "Welcome to the game"
         putStrLn "Press one to start"
         n1<- getLine
         let x1 = read n1::Int
         if(x1==1) then 
           putStrLn"DESCRIPTION: Write level 1 and  Guess the Country's name"
         else 
           putStrLn"exit"

    level 1= do
        putStrLn "It was discovered by columbus"
        ans1<- getLine
        if ans1=="america" then
          putStrLn "***CONGRATULATIONS***\n You've achieved 5 coins\n to move to next question write question2"
        else 
          putStrLn"Your answer is wrong\n***GAMEOVER***\nto try again write level 1"

    question2= do
        putStrLn "It is very famous for football"
        ans1<- getLine
        if ans1=="spain" then
          putStrLn "***CONGRATULATIONS***\n You've achieved 5 coins\n to move to next question write question3"
        else 
          putStrLn"Your answer is wrong\n***GAMEOVER***\nto try again write question2"

    question3 = do
         putStrLn "It is the largest country of the world"
         ans1<- getLine
         if ans1=="russia" then
           putStrLn "***CONGRATULATIONS***\n You've achieved 5 coins\n to move to next question write question4"
         else 
           putStrLn"Your answer is wrong\n***GAMEOVER***\nto try again write question3"
    question4 =do
        putStrLn "It has a maple leaf on its flag"
        ans1<- getLine
        if ans1=="canada" then
          putStrLn "***CONGRATULATIONS***\n You've achieved 5 coins\n to move to next question write question5"
        else 
          putStrLn"Your answer is wrong\n***GAMEOVER***\nto try again write question4"
    question5 = do
        putStrLn "It's capital is RIO DE JANEIRO"
        ans1<- getLine
        if ans1=="brazil" then
          putStrLn "***CONGRATULATIONS***\n You've achieved 5 coins\n to move to next level write level2"
        else 
          putStrLn"Your answer is wrong\n***GAMEOVER***\nto try again write question5"
    level2= do
         putStrLn"In this level you have to guess the countries capital \nwhats the capitol of china"
         ans1<- getLine
         if ans1=="bejing" then
            putStrLn "***CONGRATULATIONS***\n You've achieved 10 coins\n to move to next quest"`

如何使用扩展名

2 个答案: