C語(yǔ)言順序、選擇結(jié)構(gòu)試驗(yàn)報(bào)告

實(shí)驗(yàn)報(bào)告課程名稱 程序設(shè)計(jì)語(yǔ)言C/C++ 實(shí)驗(yàn)項(xiàng)目 順序結(jié)構(gòu)，選擇結(jié)構(gòu)編程與調(diào)試 一、實(shí)驗(yàn)?zāi)康?掌握C語(yǔ)言中使用最多的一種語(yǔ)句一一賦值語(yǔ)句的使用方法。.掌握各種數(shù)據(jù)類型的輸入輸出的方法，能正確使用各種格式轉(zhuǎn)換符。.掌握選擇結(jié)構(gòu)程序設(shè)計(jì)的方法和用用關(guān)系表達(dá)式、邏輯表達(dá)式表示選擇結(jié)構(gòu)的條件。二、實(shí)驗(yàn)內(nèi)容.調(diào)試關(guān)于各種格式轉(zhuǎn)換符的正確使用方法的程序并驗(yàn)證結(jié)果的正確性。.編寫并調(diào)試簡(jiǎn)單的關(guān)于數(shù)據(jù)類型輸入輸出的程序。.編寫并調(diào)試運(yùn)行關(guān)于if語(yǔ)句和switch語(yǔ)句使用的程序。三、實(shí)驗(yàn)步驟及結(jié)果分析1.從鍵盤輸入兩個(gè)整數(shù)，求兩數(shù)之和并輸出。#include<stdio.h>intmain(){inta,b,c;printf(〃請(qǐng)輸入兩個(gè)整數(shù)：\n〃)；scanf("%d,%d",&a,&b);c=a+b;printf("兩數(shù)之和為:%d\n",c);return0;)請(qǐng)輸入兩個(gè)整數(shù)：&24兩數(shù)之和為二32Pressanykeytocontinue

2.從鍵盤輸入園的半徑r,求園的周長(zhǎng)C、面積S并輸出。#include<stdio.h>Pleaseentertheradiusofthecircle：8.8Th?circumferenceofth?circleCis55.29Th?areaofth?circleis243.28PressanykeytocontinuemRQmufRipneaseienReRiaiRhReeBdngnRinumbeRHi^^^^^^^^^^^^^^^^^^^^^^^^^^^MPleaseenterathree-digitnumber:824Thesumofth巳digitsofthisthree-digitnumberis14Pressanykeytocontinuedisc=pow(b,2)-4*a*c;if(disc>=0){p=-b/(2.00*a);q=sqrt(disc)/(2.00*a);x1=p+q;x2=p-q;printf("Therealrootsofthisequationare:x1=%.2f;x2=%.2f\n”,x1,x2);)elseprintf("Thisequationhasn,trealroots.\n");return0;)Pleaseinputthecorrelationcoefficientofthisequation：2,&4Therealrootsofthisequationare:2[l=-0,59;x2=-3.41Pressanykeytocontinue7.從鍵盤輸入3個(gè)整數(shù)，求最大的數(shù)。#include<stdio.h>intmain(){inta,b,c,max;printf("Pleaseinputthreenumbers：\n");scanf("%d,%d,%d",&a,&b,&c);max=a;if(max<b)max=b;if(max<c)max=c;printf("Thelargestnumberis%d\n”,max);return0;)Pleaseinputthreenumbers:&24,11Thelargestnumberis24Pressanykeytocontinuex (x<1)8.有一函數(shù)y=^2x-1 (1<x<10)3x-11(x>10)編寫程序：輸入乂，輸出y值。#include<stdio.h>intmain()intx,y;printf("Pleaseinputanumber:");scanf("%d",&x);if(x<1)y=x;else{if(x>=1&&x<10)y=2*x-1;elsey=3*x-11;printf("y=%d\n",y);}3n0;Pleaseinputanumber：-7y=-7PressanykeytocontinuePleaseinputanumber：8y=15PressanykeytocontitiuePleaseinputanumber：24y^=61Pressanykeytocontinue.輸入百分制成績(jī)，要求輸出對(duì)應(yīng)的等級(jí)A?E090分以上為’A’，80-89分為’B’，70-79分為’C’，60-69分為‘D,，60分以下為‘E’。#include<stdio.h>intmain(){inta;printf("Pleaseinputascore:");scanf("%d",&a);if((a>100)||(a<0))printf("Thisscoreisworng.\n");elseif((a>=90)&&(a<=100))printf("Yourgradeis:A\n");elseif((a>=80)&&(a<90))printf("Yourgradeis:B\n");elseif((a>=70)&&(a<80))printf("Yourgradeis:C\n");elseif((a>=60)&&(a<70))printf("Yourgradeis:D\n");elseprintf("Yourgradeis:E\n");return0;)Pleaseinputascore：101Thisscoreisworng.PressanykeytocontinuePleaseinputascore：88Yourgradeis：BPressanykeytocontitiue.編寫程序：輸入月收入，輸出應(yīng)交個(gè)人所得稅金額。個(gè)人所得稅稅率級(jí)數(shù)應(yīng)納稅所得額（月）稅率速算扣除數(shù)1不超過(guò)1500元部分3%02超過(guò)1500元至4500元部分10%1053超過(guò)4500至9000元部分20%5554超過(guò)9000至35000元部分25%10055超過(guò)35000至55000元部分30%27556超過(guò)55000至80000元部分35%55057超過(guò)80000元的部分45%13505個(gè)人所得稅金額=（月收入-個(gè)人所得稅起征點(diǎn)）X稅率一速算扣除數(shù)個(gè)人所得稅起征點(diǎn)為3500元。#include<stdio.h>intmain()doublew,p,a;printf("Pleaseinputyourmonthlyincome:");scanf("%lf",&w);if(w<3500)printf("Yourpersonalincometaxamountis0.\n");elsea=w-3500;if(a<=1500)p=a*0.03;elseif((a>1500)&&(a<=4500))p=a*0.10-105;elseif((a>4500)&&(a<=9000))p=a*0.20-555;elseif((a>9000)&&(a<=35000))p=a*0.25-1005;elseif((a>35000)&&(a<=55000))p=a*0.30-2755;elseif((a>55000)&&(a<=80000))p=a*0.35-5505;elsep=a*0.45-13505;printf("Yourpersonalincometaxamountis:%lf\n”,p);「eturn0;Pleaseinputyourmonthlyincome：2000You