题目：学习使用register定义变量的方法。

题目：学习使用register定义变量的方法。

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1.程序分析：
2.程序源代码：
void main()
{
register int i;
int tmp=0;
for(i=1;i<=100;i++)
tmp+=i;
printf("The sum is %d\n",tmp);
}