求C语言,编写函数fun,功能是,判断字符串,是否是回文(123321类),是,函数...答:include <string.h> int fun(char s[]){ int b,i,t;char a[100];b=strlen(s);t=b;i=0;while(i!=t){ a[i]=s[b-1];b--;i++;} a[i]='\0';if(!strcmp(s,a))return 1;else return 0;} void main(){ char s[100];int b,i,t;printf("请输入字符串:");scanf(...