Question

[Start]
n=INT((RND*10)+1)
PRINT "I have thought of a number."
PRINT "Try to guess it!"
PRINT "Enter your guess."
INPUT g

[Right]
IF g=n THEN GOTO [Finish]
**IF g < n PRINT "Your guess was wrong. Try again. The correct answer was "; n;"." THEN GOTO [Start]
IF g > n PRINT "Your guess was wrong. Try again! The correct answer was "; n;"." THEN GOTO [Start]**

[Finish]
PRINT "Well done! You guessed it."
END

Answer 1

IF condition THEN positive ELSE negative

但是，这个

IF g > n THEN PRINT "Your guess was wrong. Try again! The correct answer was "; n;"."; GOTO [Start]

不会做你想要的，因为IF ...那么... ELSE句子在打印后结束，随后GOTO将在任何一种情况下运行。

在大多数BASIC中，您可以这样做：

IF g > n THEN 
  PRINT "Your guess was wrong. Try again! The correct answer was "; n;"."; 
ELSE
  GOTO Start
END IF

但我不确定你的风味。

Answer 2

尽管可能会减少GOTO，但这也应该有效：

[Start]
n=INT((RND*10)+1)
PRINT "I have thought of a number."
PRINT "Try to guess it!"
PRINT "Enter your guess."
INPUT g

[Right]
IF g=n THEN GOTO [Finish]

PRINT "Your guess was wrong. Try again. The correct answer was "; n;"."     
GOTO [Start]

[Finish]
PRINT "Well done! You guessed it."
END

我不知道我在Just BASIC上运行的代码有什么问题

2 个答案: