随笔分类 -  C语言

摘要：【例4-1】#include<stdio.h>#include<math.h>int main(void){int denominator,flag;double item,pi;flag=1;denominator=1;item=1.0;pi=0;while(fabs(item)>=0.0001){item=flag*1.0/denominator;pi=pi item;flag=-flag;d... 阅读全文

摘要：【练4-1】0.0000；无法通过while循环语句。会；循环次数减少。【练4-2】没有变化。0.00；负数不符合循环语句条件，直接跳出语句。【练4-3】#include<stdio.h>int main(void){int flag,denominator;double eps,item,s;printf("Enter eps:");scanf("%lf",&eps);flag=1;s=0;de... 阅读全文

摘要：[例3-1]#include<stdio.h>int main(void){int digit,i,letter,other;char ch;digit=letter=other=0;printf("Enter 10 characters:");for(i=1;i<=10;i ){ch=getchar();if((ch>='a'&&ch<='z')||(ch>='A'&&ch<='Z'))lett... 阅读全文

摘要：[练3-1]不需要；因为已经涵盖了所有可能的条件。[练3-2]#include<stdio.h>int main(void){int y;double x;printf("Enter x:");scanf("%lf",&x);if(x<0)y=-1;else if(x==0)y=0;elsey=1;printf("y=sign(%f)=%d\n",x,y);return 0;}[练3-3]#inc... 阅读全文

摘要：【例2-1】#include<stdio.h>int main(void){printf("Hello World!\n");return 0;}【例2-2】#include<stdio.h>int main(void){printf("Programming is fun.\n");printf("And Programming in C is even more fun!\n");return... 阅读全文

摘要：【练2-1】#include<stdio.h>int main(void){printf("Programming in C is even more fun!\n");return 0;}【练2-2】printf("Programming is fun. And Programming in C is even more fun!\n");#include<stdio.h>int main(vo... 阅读全文