C语言FOR循环练习题

1、实验五循环结构实验for循环目的和要求：1、掌握循环结构程序设计的方法2、掌握简单循环程序设计方法3、掌握for循环程序设计实验题目：1、求1+2+3+100的和，并输出。#i nclude <stdio.h>main ()int a,b=0;a=1;for(;a<=100;a+)b=b+a;printf ("1+2+3+100=%dn",b);2、利用for循环编程，输出如下图形:*G、 "C = VDOCTHERTS AHD SETTinGSADBIri5TEL&TOR：EEbucL. cic"BBfl*2*3* * * t

2、l00-S060Pt-ess any h僧y to continue(b)(a)图A#i nclude <stdio.h>mai n()int a,b;for (a=1;a<=8;a+) for(b=1;bv=a;b+) printf ("*");printf ("n");*< "CiWCTIHEHTS AHD SETTIBGSAD>III5TEIATORBi;bu(U eieKM K 試Pi'ess any key to continueB#i nclude <stdio.h>mai n()i

3、nt a,b;for (a=1;a<=8;a+)for (b=1;b<=8-a;b+) printf ("");for(b=1;b<=a;b+) printf ("*");printf ("n");<' "C= VDOCTHEHTS AHT SETTI»GS3IIHr5TR£T0RaBcbii( I. cicqjFt'ess anw key to continue3、判断输入的某个数是否为素数,若是,输出YES,否则输出NO.#i nclude <stdio.

4、h>main ()int a,b,c=1;printf ("请输入一个数(正整数)n");sca nf ("%d",&a);if (a=1)printf ("NOn"); elseif (a=2)printf ("YESn"); elsefor(b=2;bv=(a-1);b+) if(a%b=O)c=0; break;if (c=1)printf ("YESn");elseprintf ("NOn");bJ"CXDOCIIBEHTS ZITO SETT

5、IBG5ADlIVr3TL&TOE：Debut I - bxc17砸SPiess any ke to continue提示：素数的判断条件4、求100-999之间的所有水仙花数，并输出。提示：水仙花数是一个3位数的自然数，该数各位数的立方和等于该数本身。例如：153=13+53+33，所以153为水仙花数。#i nclude <stdio.h>main ()int a,b,c,d;for (a=100;a<=999;a+)b=a/100; c=(a-100*b)/10; d=a-100*b-10*c;if(b*b*b+c*c*c+d*d*d=a) printf ("%dt",a);G、"C:DOCTHEHTS ABV 3ETT