[英]How can I add a space after the first printf statement?
C语言中的随机数猜谜游戏
如果没有猜到正确的数字,用户将有10个猜测,然后游戏将退出。
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
int main() {
int theNumber;
int userGuess;
int counter = 10;
int lowerBound = 1, upperBound = 100;
// seed function
srand((unsigned)time(NULL));
// generates number between 1 and 100
theNumber = lowerBound + rand() % (upperBound - lowerBound + 1);
printf("Please guess a number (1-100): ");
for (counter = 9; counter <= 10; counter--) {
// get users guess
scanf("%d", &userGuess);
if (userGuess == theNumber) {
printf("You guessed it! The number was: %d", theNumber);
break;
}
if (userGuess < theNumber && counter >= 1)
printf("Your guess was too low. You have %d guesses remaining. Guess higher: ", counter);
if (userGuess > theNumber && counter >= 1)
printf("Your guess was too high. You have %d guesses remaining. Guess lower: ", counter);
if (counter == 0) {
printf("\nYou ran out of guesses. The number was: %d \n", theNumber);
break;
}
}
return 0;
}
样本输出:
Please guess a number (1-100): 100
Your guess was too high. You have 9 guesses remaining. Guess lower: 90
如何在第一个printf语句之后添加空格,以使输出看起来像这样?
所需的输出:
Please guess a number (1-100): 100
Your guess was too high. You have 9 guesses remaining. Guess lower: 90
如果用户输入的文字像“一个”! 怎么了?
总是检查错误 :
if (scanf("%d", &userGuess) != 1){
printf("incorrect input.\n");
return 1;
}
如果需要垂直空间,请使用printf("\\n");
。
如果您只需要垂直空间一次使用:
if (counter == 9)
printf("\n");
样例代码:
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
int main() {
int theNumber;
int userGuess;
int counter = 10;
int lowerBound = 1, upperBound = 100;
// seed function
srand((unsigned)time(NULL));
// generates number between 1 and 100
theNumber = lowerBound + rand() % (upperBound - lowerBound + 1);
printf("Please guess a number (1-100): ");
for (counter = 9; counter <= 10; counter--) {
// get users guess
if (scanf("%d", &userGuess) != 1){
printf("incorrect input.\n");
return 1;
}
//if (counter == 9)
printf("\n");
if (userGuess == theNumber) {
printf("You guessed it! The number was: %d", theNumber);
break;
}
if (userGuess < theNumber && counter >= 1)
printf("Your guess was too low. You have %d guesses remaining. Guess higher: ", counter);
if (userGuess > theNumber && counter >= 1)
printf("Your guess was too high. You have %d guesses remaining. Guess lower: ", counter);
if (counter == 0) {
printf("\nYou ran out of guesses. The number was: %d \n", theNumber);
break;
}
}
return 0;
}
如果您要询问这两行之间的新空白行,只需添加printf("\\n");
在您的第一个printf语句之后。
如果要在任何地方放置间距,请使用printf(" ");
这将在两者之间增加空间。
使用int和while循环可在所需之间打印尽可能多的空格或新的空白行。
例:
int main()
{
int i;
i = 0;
while (i < 30)
{
printf(" ");
i++;
}
printf("X\n");
return 0;
}
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