#include <stdio.h>

int main()

{

    int age = 18;

float height = 1.85;

char unit ='m';

printf("小明今年%d岁\n", age);

printf("小明身高%f%c\n", height, unit);

printf("小明现在在慕课网上学习IT技术"); 

return 0;

}

#include <stdio.h>

int main(){

    int age = 18;

float height = 1.85;

char unit = 'm';

printf("小明今年%d岁\n", age);

printf("小明身高%f%c\n", height, unit);

printf("小明现在在慕课网上学习IT技术"); 

return 0;

}

  double num = 2.5;    

    int num2=(int)num;//定义浮点型变量num并赋值为2.5

    printf("num的整数部分是%d\n", num2);  

    return 0;