C 数据类型示例

// 创建不同数据类型的变量
int items = 50;
float cost_per_item = 9.99;
float total_cost = items * cost_per_item;
char currency = '$';

// 打印变量
printf("Number of items: %d", items);
printf("Cost per item: %.2f %c", cost_per_item, currency);
printf("Total cost = %.2f %c", total_cost, currency);