-前言-/*非常感谢度娘以及各位网上C语言高手的支持，才能让敝人完成此文档的整理。本文档集合了本人、度娘、众网友的力量，其中代码的正确率约为90%（不正确的有标注）。为回报度娘及众网友的帮助，本文档免费下载。*//*配“电子科技大学出版社（周信东主编）”的C语言程序设计实验*//*努力吧，骚年以及学妹们！*//*整理edby口玉刀一ofGUET.*/=====================实验一C语言程序初步=====================1.----------------------------已知a=5,b=4,c=6,求出s并换行#include"stdio.h"main(){inta,b,c,s;a=5;b=4;c=6;s=(a+b+c)/3;printf("a=%d,b=%d,c=%d\n,s=%d",a,b,c,s);}2.-------------------------------输入一个数字求他的平方#includemain(){intr,s;scanf("%d",&r);s=r*r;printf("s=%d\n",s);}3.--------------------------------（1）#includemain(){printf("*\n");printf("***\n");printf("*\n");}（2）#includemain()1{intv;inta,b,c;//a,b,caersides,visvolumeofcubea=3;b=3;c=5;v=a*b*c;printf("v=%d\n",v);}=================================实验二数据类型、运算符和表达式=================================1.（1）--------------------------------------------------//总觉得打印结果怪怪的，DOYOUTHINKSO?main(){chars1='3',s2='4',s3='5';intc1=101,c2=102;printf("3%c\t4%c\t5%c\n",s1,s2,s3);//3%c为输出3和%cprintf("s1=%d\ts2=%d\ts3=%d\n",s1,s2,s3);//注意哦，s1,s2,s3是char!而%d：输入输出为整形%ld长整型%hd短整型%hu无符号整形%u%lu%s:输入输出为字符串%c字符%f：输入输出为浮点型%lf双精度浮点型printf("c1=%d\t~%c\n",c1,c1);//换码符'\t',表示水平制表位（horizeontaltab）,它的作用是将光标移到最接近8的倍数的位置printf("c2=%d\t~%c\n",c2,c2);//注意c1,c2的类型}（2）//运行结果为8.300000%是求余数先运算x-y，把结果转换为int型的有利于四则运算main(){floatx=8.3,y=4.2,s;inta=7;s=x+a%5*(int)(x-y)%2/3;printf("s=%f",s);}2（3）main(){inti,j,p,q;i=3;j=6;p=i++;q=--j;printf("%d,%d,%d,%d\n",i,j,p,q);p=i--+3;q=++j-4;printf("%d,%d,%d,%d",i,j,p,q);}（4）main(){intm=15,n=9,s;m*=3+2;printf("%d",m);n+=n-=n*=n;printf("%d",n);printf("%d\n",(s=6*5,m+n+s));printf("%d\n",s);}2.----------------------------------------------------（1）#include#defineMM40main(){inta=3,b=6,t;t=MM/(3+6);printf("%d%d",t,MM);}//原来printf语句打成了print，printf语句中少了一个%d.3（2）#includemain(){intm;doublex;scanf("%d",&m);x=3.14*m*m;printf("%f",x);}//注意分号，%f转义（3）main(){intm=8,n=5;printf("%d",m*=m-n);printf("%d,%d,%d",m=m+1,n-1,m+n);}3.----------------------------------------------------main(){inta=9,b=5;a+=b;b=a-b;a-=b;printf("%d%d",a,b);}4.----------------------------------------------------//4.输入a,b,c三个变量，计算数学公式(a*b)/cmain(){inta,b,d;floats,c;scanf("%d%d%f",&a,&b,&c);d=a*b;s=d/c;4printf("%f",s);}=================================实验三顺序结构和输入输出方法=================================1.---------------------------------------------------（1）main(){intm=345,t;floatn=2.56;t=2.56*100;printf("m=%d,n*100=%d\n",m,t);}（2）main(){inta,b,c,s,v;scanf("%d%d%d",&a,&b,&c);s=a*b;v=a*b*c;printf("%d,%d,%d\n",a,b,c);printf("s=%d,v=%d\n",s,v);}2.----------------------------------------------------（1）main(){intm,n;floatx=3.5,y=6.2;scanf("%d,%d",&m,&n);printf("%6d,%6d",m,n);/*每个数的输出宽度为6,两个数之间逗号建个。*/printf("x=%7.2f,y=%7.2f",x,y);/*个数的输出宽度7,小数位2*/}5（2）main(){inta,b;longm,n;floatp,q;scanf("a=%d,b=%d\n%f,%f",&a,&b,&p,&q);scanf("%ld",&m);scanf("%ld",&n);printf("a=%d,b=%d\nm=%ld,n=%ld\n",a,b,m,n);printf("p=%f,q=%f\n",p,q);}//打印...
