校验和算法

#include#include#include#include#defineMAX_BUFF256voidmain(intargc,char*argv[]){FILE*stream;charbuff[MAX_BUFF];//缓冲区数组最大256个字符longsum=0;//累加器charnstring[5];//待转换成数字进行累加的字符串（4个）intnumber=0;//待加数unsigneds