我想使用以下方法输入多行字符串:
fgets(str,100,stdin)
然后输出相同的字符串。
例如:
输入:
my name is sandy
i am learning C
,输出应为:
my name is sandy
i am learning C
答案 0 :(得分:0)
#include <stdio.h>
#include <string.h>
char *mfgets(char * restrict s, int n, FILE * restrict stream){
int ch, i=0;
if(n<1)return NULL;
if(n==1){
*s = '\0';
return s;
}
while(EOF!=(ch=fgetc(stream))){
s[i++] = ch;
if(i == n - 1) break;
if(ch == '\n'){
char next = fgetc(stream);
if(next == '\n')
break;
else
ungetc(next, stream);
}
}
s[i] = '\0';
return i == 0 ? NULL : s;
}
int main(int argc, char *argv[]){
char str[100];
printf("input (only newline is end)\n");
mfgets(str, 100, stdin);
printf("%s", str);
return 0;
}