Bo的早八日记之数字计算

#include <stdio.h>
int main()
{
    int age = 18;
    float gz = 8500.22;
    char name = 'b';
    int age1 = age;
    int age2 = 17 +2;
    age = age + 1;
    age += 1;
    age++;
    ++age;
    age = age * 2;
    age *= 2;
    printf("age is %d\n", age);
    return 0;
}