请问这程序思路哪不对，谢谢

Question

#include <stdio.h>
int main()

{
    int age = 18;
 float height = 1.85;
 printf("%d"\n, age);
 printf("%f"\n,height);
 printf("小明现在在慕课网上学习IT技术"\n); 
 return 0;
}