摘要： /* 统计字符 */#includeint main(void){ int digit,kong,letter,other; char ch; int i; digit=kong=letter=other=0; printf("Enter 15 characters:"); for(i=1;i='a'&&ch='A'&&ch='0'&&chint main(void){ int count,i,n; double grade,total; printf("Enter n 阅读全文

摘要： #includeint main(void){ int denominator,flag,i,n; double item,sum; printf("Enter n:"); scanf("%d",&n); flag=1; denominator=1; sum=0; for(i=1;i<=n;i++){ item=flag*1.0/denominator; sum=sum+item; flag=-flag; denominator=denominator+2; } printf("... 阅读全文