閱讀1個char和2個整數與scanf函數

Question

我想讀1個字符和2個整數沒有成功。

的C代碼：

char action; int cr,cc; 
printf("Enter 'c <row> <column>' to click on a block.\n"); 
scanf("%c %d %d",&action,&cr,&cc); 
printf("You typed: %c %d %d\n",action,cr,cc); 

端子輸出：（實施例）

Enter 'c <row> <column>' to click on a block. 
c 3 3 
You typed: 
0 0 

我用gcc編譯它（Ubuntu的5.3.1-14ubuntu2.1）5.3.1 20160413在Ubuntu 16.04 LTS 。

Answer 1

我想你還沒有聲明的變量正確

char action; 
int cr, cc; 

下面是相同的代碼：http://ideone.com/spf5Vu

Answer 2

沒有見過你的整個代碼，我建議你試試：

#include<stdio.h> 

int main(int argc, char *argv[]) 
{ 
     int cr, cc; 
     char action; 
     printf("Enter 'c <row> <column>' to click on a block.\n"); 
     scanf("%c %d %d",&action, &cr, &cc); 
     printf("You typed: %c %d %d\n", action, cr, cc); 
} 

這應該工作。