> 分析原因可能是：
> 要一块输出，而不能输入一次输出一次
> source code:
> 
> #include <stdio.h>
> #include <string.h>
> #include <iostream.h>
> 
> void main()
> {
> 	char * morse[30]={".-","-...","-.-.","-..",".","..-.","--.",
> 					"....","..",".---","-.-",".-..","--","-.",
> 					"---",".--.","--.-",".-.","...","-","..-",
> 					"...-",".--","-..-","-.--","--..",
> 					"..--",".-.-","---.","----"};
> 	int input[101];
> 	char a[501];
> 	int len[101];
> 	char c;
> 	int m,n,i=0; int j;
> 	cin>>n;
> 	
> 	
> 	for(int l=0;l<n;l++){
> 		
> 		for(i=0;i<100;i++){
> 			scanf("%c",&c);
> 			if(c=='\n') break;
> 			if(('A'<=c)&&(c<='Z')) input[i]=(int)(c-'A');
> 			else 
> 				switch(c){
> 					case '_': input[i]=26; break;
> 					case ',': input[i]=27; break;
> 					case '.': input[i]=28; break;
> 					case '?': input[i]=29; break;
> 					
> 			}
> 		}
> 		int ilength=i;
> 		printf("%d: ",l+1);
> 		
> 		int index=0;m=0;
> 		for(i=0;i<ilength;i++){
> 			int k=i;
> 			j=0;
> 			while(j<(int)strlen(morse[input[k]]))
> 				a[index++]=morse[input[k]][j++];
> 						
> 			
> 			len[m++]=j;
> 		}
> 		
> 		for(i=0;i<m/2;i++){
> 			int temp =len[i];
> 			len[i]=len[m-1-i];
> 			len[m-1-i]=temp;
> 		}
> 			
> 		index=0;
> 		char compare[5];
> 
> 		for(i=0;i<m;i++){
> 			
> 			for(j=0;j<len[i];j++)
> 				compare[j]=a[index++];
> 			compare[j]='\0';
> 			
> 			for(j=0;j<30;j++)
> 				if(!strcmp(morse[j],compare)) 
> 					break;
> 		
> 			
> 			if((0<=j)&&(j<=25))
> 				c=(char)j+'A';
> 			else
> 				switch(j){
> 				case 26: c='_'; break;
> 				case 27: c=','; break;
> 				case 28: c='.'; break;
> 				case 29: c='?'; break;
> 			}
> 			printf("%c",c);
> 		}
> 		printf("\n");
> 	}
> }
> 				
> 			
> 
> 
>