要获取用户输入的行，请使用 fgets().

To get a line of user input, use fgets().

#define S_MAX_LENGTH
char s[S_MAX_LENGTH + 2];
if (fgets(s, sizeof s, stdin)) {
  s[strcspn(s, "\n")] = '\0'; // Should code want to lop off a potential trailing \n
  ....

请勿使用 scanf(％[^ \ n] s"，s); 或 gets(s); .它们遭受缓冲区溢出和其他问题的困扰.

Do not use scanf("%[^\n]s", s); nor gets(s);. They suffer from buffer overflow and other issues.