目录1.变量………………………………………………………………………………12.循环………………………………………………………………………………23.条件语句…………………………………………………………………………24.语句的嵌套………………………………………………………………………25.注释………………………………………………………………………………26.关系和逻辑运算符………………………………………………………………37.宏…………………………………………………………………………………38.#stop……………………………………………………………………………49.#include与#parse…………………………………………………