4-10
4-10的任務(wù)代碼怎么輸
慕仔251733
2018-04-27
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4-10的任務(wù)代碼怎么輸
2018-04-27
舉報(bào)
2018-04-27
這題就是考對(duì)這三種循環(huán)的熟練度，你可以任選一種來(lái)寫(xiě)，當(dāng)然也可以三種一起用，不過(guò)每個(gè)循環(huán)結(jié)束后要記得將sum和i重新初始化
2018-04-27
include <stdio.h>
int main()
{
??? int sum = 0;??
??? int i = 1;???
??? int flag = 1;?
??? while(i<=100)
??? {
??????? i++;
??????? sum+=i*flag;
??????? flag*=-1;
???????
??? }
??? printf("sum=%d\n",sum);
??? return 0;
}
??? int sum=0;
??? int i = 1;????
??? int flag = 1;?
????
??? do{
??????? i++;
??????? sum+=i*flag;
??????? flag*=-1;
???????
??? }while(i<=100);
??? printf("sum=%d\n",sum);
??? return 0;
??? }
??? i = 1;??
????
??? int sum = 0;??
??? int i = 1;????
??? int flag = 1;?
????
??? for(i=1;i<=100;i++)
??? {sum+=i*flag;
??? flag*=-1;
???????
??? }?
??? printf("sum=%d\n",sum);
???
??? return 0;???
}