何时在scanf使用＆

#include <stdio.h>

int main(void){
    int age;
    float assets;
    char pet[30];        // string

    printf("Enter your age, assets, and favorite pet./n");
    scanf("%d %f", &age, &assets); // use the & here
    scanf("%s", pet);              // no & for char array
    printf("%d $%.2f %s/n", age, assets, pet);

    return 0;
}