//一个计算 “100+40-10+26=”的代码
/*int main()
{
int i,j=0,start=0,t=0,sum=0,end,k;
char tmp[20],a[]={"100+40-10+26="};
for(i=0;i<=strlen(a);i++)
{
if(a[i]=='+'||a[i]=='-'||a[i]=='=')
{
end=i;
for(j=0;start<=end;start++,j++)
{
tmp[j]=a[start];
if(start==end)
{
tmp[j]='/0';
t=atoi(tmp);
}
}
for(k=i-1;a[k]!='+'&&a[k]!='-'&&k!=0;k--)
if(a[k-1]=='-')
t=-t;
sum=sum+t;
}
}
printf("结果为:%d/n",sum);
}