定义变量类型要与变量之间有空格，字符型定义要用char来定义

#include <stdio.h>

int main()

{

     int age = 15;

    int height = 162;

    float weight = 82.5;

    int isfat = 'y';

    printf("年龄：%d 岁\n", age);

    printf("身高：%d CM\n", height);

    printf("体重：%f KG\n", weight);

    printf("是否属于肥胖儿童：%c\n",isfat);

    return 0;

}