呵呵，上面都有问题用c语言怎么编写1-3+5-7+9-...+97-99+101回答：#includemain(){inti,sum=0,sum1=0,sum2=0;for(i=1;i=i+4;i<101){sum1+=i;for(i=3;i=i+4;i<101){sum2+=i;}sum=sum1-sum2;printf("theresultis:%d",sum);}
