书本作业

2-1 *

• @Author: 蔡悦杰
• @Date: 2020-11-08 22:57:31
• @LastEditTime: 2020-11-08 23:05:02
• @LastEditors: your name
• @Description: In User Settings Edit
• @FilePath: \undefinedc:\Users\xbf77\Desktop\C\书本作业\2-1.c */ #include<stdio.h>

int main()

{

printf("蔡悦杰\n");

printf("蔡\n");

printf("悦杰\n");

printf("蔡悦杰");

printf("蔡悦杰");


getchar();

return 0;

} 2-2 /*

• @Author: 蔡悦杰
• @Date: 2020-11-08 23:05:25
• @LastEditTime: 2020-11-08 23:06:07
• @LastEditors: Please set LastEditors
• @Description:
• @FilePath: \undefinedc:\Users\xbf77\Desktop\C\书本作业\2-2.c */ #include<stdio.h>

int main()

{

printf("蔡悦杰\n");

printf("浙江树人大学致和园");


getchar ();

return 0;

} 2-3 /*

• @Author: 蔡悦杰
• @Date: 2020-11-08 23:06:24
• @LastEditTime: 2020-11-08 23:27:29
• @LastEditors: Please set LastEditors
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• @FilePath: \undefinedc:\Users\xbf77\Desktop\C\书本作业\2-3.c */ #include<stdio.h>

#define days 365

int main()

{

int age,day;

age=19;

day=age*days;

printf("你的年龄为%d,天数为%d",age,day);


getchar();

return 0;

} 2-4 /*

• @Author: 蔡悦杰
• @Date: 2020-11-08 23:27:50
• @LastEditTime: 2020-11-08 23:36:15
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• @FilePath: \undefinedc:\Users\xbf77\Desktop\C\书本作业\2-4.c */ #include<stdio.h>

int jolly();

int deny();

int main()

{

jolly();


jolly();

jolly();

deny();


return 0;

}

int jolly()

{

printf("For he's a jolly good fellow!\n");

return 0;

}

int deny()

{

printf("Which nobody can deny!\n");

return 0;

}
2-5 /*

• @Author: 蔡悦杰
• @Date: 2020-11-08 23:27:50
• @LastEditTime: 2020-11-08 23:36:15
• @LastEditors: Please set LastEditors
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• @FilePath: \undefinedc:\Users\xbf77\Desktop\C\书本作业\2-4.c */ #include<stdio.h>

int jolly();

int deny();

int main()

{

jolly();

jolly();

jolly();

deny();


return 0;

}

int jolly()

{

printf("For he's a jolly good fellow!\n");

return 0;

}

int deny()

{

printf("Which nobody can deny!\n");

return 0;

}
2-6 /*

• @Author: your name
• @Date: 2020-11-12 22:15:32
• @LastEditTime: 2020-11-12 22:30:47
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• @FilePath: \undefinedx:\C\书本作业\2-6.c */ #include<stdio.h>

#include<stdlib.h>

#include<math.h>

int main()

{

int toes;

toes=10;

printf("toes=%d\n",toes);

toes=2*toes;

printf("double toes=%d\n",toes);

toes=pow(toes/2,2);

printf("toes square=%d\n",toes);


system("pause");

return 0;

}

2-7

/*

• @Author: your name
• @Date: 2020-11-12 22:31:45
• @LastEditTime: 2020-11-12 22:43:28
• @LastEditors: Please set LastEditors
• @Description: In User Settings Edit
• @FilePath: \undefinedx:\C\书本作业\2-7.c */ #include<stdio.h>

int s();

int main()

{

s();s();s();

printf("\n");

s();s();

printf("\n");

s();


getchar();

return 0;

}

int s()

{

printf("Smile!");

return 0;

} 2-8 /*

• @Author: your name

• @Date: 2020-11-12 22:40:42

• @LastEditTime: 2020-11-12 22:57:37

• @LastEditors: Please set LastEditors

• @Description: In User Settings Edit

• @FilePath: \undefinedx:\C\书本作业\2-8.c */ #include<stdio.h> int one_three(); int two(); int main() { printf("starting now:\n"); one_three(); printf("done!\n");

  getchar(); return 0; } int one_three() { printf("one\n"); two(); printf("three\n");

  return 0; } int two() { printf("two\n");

  return 0; } 3-2 /*

• @Author: your name

• @Date: 2020-11-12 22:56:52

• @LastEditTime: 2020-11-12 23:16:28

• @LastEditors: Please set LastEditors

• @Description: In User Settings Edit

• @FilePath: \undefinedx:\C\书本作业\3-2.c */ #include<stdio.h>

#include<stdlib.h>

int main()

{

int x;

printf("输入一个ASCII码：");

scanf("%d",&x);


printf("输出的字符为%c\n",x);

system("pause");
return 0;

} 3-3

/*

• @Author: your name
• @Date: 2020-11-12 23:16:54
• @LastEditTime: 2020-11-12 23:19:58
• @LastEditors: your name
• @Description: In User Settings Edit
• @FilePath: \undefinedx:\C\书本作业\3-3.c */ #include<stdio.h>

int main()

{

char ch = '\a';

printf("%c",ch);


printf("Starled by the sudden sound,Sally shouted,\n");

printf("\"By the Great Pumpkin,what was that!\"\n");


getchar ();

return 0;

}

3-4

/*

• @Author: your name
• @Date: 2020-11-13 23:58:09
• @LastEditTime: 2020-11-14 00:01:06
• @LastEditors: Please set LastEditors
• @Description: In User Settings Edit
• @FilePath: \undefinedx:\C\书本作业\3-4.c */ #include<stdio.h>

int main()

{

float input;

printf("Enter a floating-point value:");

scanf("%f",&input);


printf("fixed-point notation:%f\n",input);

printf("exponential notation:%e\n",input);

printf("p notation:%a\n",input);


return 0;

} 3-5

/*

• @Author: your name
• @Date: 2020-11-14 10:53:47
• @LastEditTime: 2020-11-14 10:58:16
• @LastEditors: Please set LastEditors
• @Description: In User Settings Edit
• @FilePath: \undefinede:\zhuomian\C\3-5.c */ #include<stdio.h>

#define S_P_Y 3.156e7

int main()

{

float second,year;

printf("Enter how many year old you are:");

scanf("%f",&year);

second=year*S_P_Y;

printf("You are:%.1f years old.\n",year);

printf("And you are %e sconds old,too.\n",second);

return 0;

} 3-6

/*

• @Author: your name
• @Date: 2020-11-14 10:58:50
• @LastEditTime: 2020-11-14 11:02:05
• @LastEditors: your name
• @Description: In User Settings Edit
• @FilePath: \undefinede:\zhuomian\C\3-6.c */ #include<stdio.h>

#define MOLE 3.0e-23

#define QUART 950

int main()

{

float quart,quantity;

printf("Enter how many quart:");

scanf("%f",&quart);

quantity=quart*QUART/MOLE;

printf("There are %e molecule.\n",quantity);

return 0;

} 3-7

/*

• @Author: your name
• @Date: 2020-11-14 11:02:44
• @LastEditTime: 2020-11-14 11:05:13
• @LastEditors: your name
• @Description: In User Settings Edit
• @FilePath: \undefinede:\zhuomian\C\3-7.c */ #include<stdio.h>

#define INCH_TO_CM 2.54

int main()

{

float inch,cm;

printf("Enter the inch of your heigh:");

scanf("%f",&inch);

cm=inch*INCH_TO_CM;

printf("Hi,your are %0.2f inch,or %.2f cm heigh\n",inch,cm);

return 0;

}

3-8

/*

• @Author: your name
• @Date: 2020-11-14 11:05:52
• @LastEditTime: 2020-11-14 11:14:26
• @LastEditors: Please set LastEditors
• @Description: In User Settings Edit
• @FilePath: \undefinede:\zhuomian\C\3-8.c */ #include<stdio.h>

#define PINT_CUP 2

#define CUP_OUNCE 8

#define OUNCE_SPOON 2

#define SPOON_TEA 3

int main()

{

float pint,cup,ounce,spoon,tea_spoon;

printf("Enter how many cup:");

scanf("%f",&cup);

pint=cup/PINT_CUP;

ounce=cup*CUP_OUNCE;

spoon=ounce*OUNCE_SPOON;

tea_spoon=spoon*SPOON_TEA;


printf("%.1f cup equals %.1f pint,%.1f ounce,%.1f spoon,%.1f tea_spoon.\n",cup,pint,ounce,spoon,tea_spoon);

return 0;

} 4-1

/*

• @Author: your name
• @Date: 2020-11-14 11:17:23
• @LastEditTime: 2020-11-14 11:22:45
• @LastEditors: your name
• @Description: In User Settings Edit
• @FilePath: \undefinede:\zhuomian\C\4-1.c */ #include<stdio.h>

int main()

{ char name[40];

char surname[40];

printf("Please input your first name:");

scanf("%s",&name);

printf("Please input your last name:");

scanf("%s",&surname);

printf("Hello,%s,%s.",name,surname);

return 0;

} 4-2

/*

• @Author: your name
• @Date: 2020-11-15 20:11:19
• @LastEditTime: 2020-11-15 20:22:06
• @LastEditors: Please set LastEditors
• @Description: In User Settings Edit
• @FilePath: \undefinedx:\C\书本作业\4-2.c */ #include<stdio.h>

int main()

{

char name[40];

int width;

printf("Please input your name:");

scanf("%s",name);

width=printf("\"%s\"\n.",name);

width -=4;

printf("\"%20s\".\n",name);

printf("\"%*s\".",(width+3),name);


return 0;

} 4-3

/*

• @Author: your name
• @Date: 2020-11-15 20:23:03
• @LastEditTime: 2020-11-15 20:24:35
• @LastEditors: Please set LastEditors
• @Description: In User Settings Edit
• @FilePath: \undefinedx:\C\书本作业\4-3.c */ #include<stdio.h>

int main()

{

float input;

printf("Enter a float number:");

scanf("%f",&input);

printf("The input is %.1f or %.1e\n",input,input);

return 0;

} 4-4

/*

• @Author: your name
• @Date: 2020-11-15 20:24:56
• @LastEditTime: 2020-11-15 20:29:34
• @LastEditors: Please set LastEditors
• @Description: In User Settings Edit
• @FilePath: \undefinedx:\C\书本作业\4-4.c */ #include<stdio.h>

int main()

{

float heigh;

char name[40];

printf("Enter your name:");

scanf("%s",name);

printf("Hi %s,how tall you are( inch ):",name);

scanf("%f",&heigh);

printf("%s,you are %.3f feet tall\n",name,heigh/12.0);

return 0;

} 4-5

/*

• @Author: your name
• @Date: 2020-11-15 20:30:08
• @LastEditTime: 2020-11-15 20:33:38
• @LastEditors: Please set LastEditors
• @Description: In User Settings Edit
• @FilePath: \undefinedx:\C\书本作业\4-5.c */ #include<stdio.h>

int main()

{

float speed,size,time;

printf("Pleast input the net speed(megabits per second):");

scanf("%f",&speed);

printf("Pleast input the file size(megabyte):");

scanf("%f",&size);

time = size*8/speed;

printf("At %.2f megabits per second,a file of %.2f megabytes download in %.2f seconds.",speed,size,time);

return 0;

} 4-6

/*

• @Author: your name
• @Date: 2020-11-15 20:33:58
• @LastEditTime: 2020-11-15 20:44:19
• @LastEditors: Please set LastEditors
• @Description: In User Settings Edit
• @FilePath: \undefinedx:\C\书本作业\4-6.c */

#include<stdio.h>

int main()

{

char name[40],surname[40];

int wname,wsurname;

printf("Please input your first name:");

scanf("%s",name);

printf("Please input your last name:");

scanf("%s",surname);

wname=printf("%s",name);

printf("");

wsurname=printf("%s",surname);

printf("\n%*d %*d",wname,wname,wsurname,wsurname);

return 0;

} 4-7

/*

• @Author: your name
• @Date: 2020-11-15 20:44:41
• @LastEditTime: 2020-11-15 20:49:41
• @LastEditors: Please set LastEditors
• @Description: In User Settings Edit
• @FilePath: \undefinedx:\C\书本作业\4-7.c */ #include<stdio.h>

#include<float.h>

int main()

{

double d_third=1.0/3.0;

float f_third=1.0/3.0;

printf("float of one third(6)=%.6f\n",f_third);

printf("float of one third(12)=%.12f\n",f_third);

printf("float of one third(16)=%.16f\n",f_third);

printf("float of one third(6)=%.6lf\n",d_third);

printf("float of one third(12)=%.12lf\n",d_third);

printf("float of one third(16)=%.16lf\n",d_third);

printf("FLT_DIG in float.h is %d\n",FLT_DIG);

printf("DBL_DIG in float.h is %d\n",DBL_DIG);


return 0;

} 4-8

/*

• @Author: your name
• @Date: 2020-11-15 20:50:02
• @LastEditTime: 2020-11-15 20:54:21
• @LastEditors: Please set LastEditors
• @Description: In User Settings Edit
• @FilePath: \undefinedx:\C\书本作业\4-8.c */ #include<stdio.h>

#define GALLON_TO_LITRE 3.785

#define MILE_TO_KM 1.609

int main()

{

float range,oil;

printf("Pleast input the range you traveled(in mile):");

scanf("%f",&range);

printf("Pleast input the oil you spend(in gallon):");

scanf("%f",&oil);

printf("In UAS,your oil wear is %.1f M/G\n",range/oil);

printf("In Europe,your oil wear is %.1fL/100KM",

(oil*GALLON_TO_LITRE)/(range*MILE_TO_KM));


return 0;

} 5-1

/*

• @Author: your name
• @Date: 2020-11-15 21:50:53
• @LastEditTime: 2020-11-15 21:50:57
• @LastEditors: Please set LastEditors
• @Description: In User Settings Edit
• @FilePath: \undefinedx:\C\书本作业\5-1.c */ #include<stdio.h>

#define MIN_PER_HOU 60

int main(int argc, char *argv[])

{

int hours, minutes, input;

printf("CONVERT MINUTES TO HOURS!\n");

printf("PLEASE INPUT THE NUMBER OF MINUTES( <=0 TO QUIT ):");

scanf("%d",&input);

while(input >0){

    hours = input/MIN_PER_HOU;
	
    minutes = input%MIN_PER_HOU;
	
    printf("CONVER TO %d HOUR AND %d MINUTES\n",hours,minutes);
	
    printf("PLEASE COMTINUE INPUT THE MUNMBER OF MINUTES( <=0 TO QUIT ):");
	
    scanf("%d",&input);
	
}

printf("PROGRAM EXIT！\n");

} 5-2

/*

• @Author: your name
• @Date: 2020-11-15 21:51:09
• @LastEditTime: 2020-11-15 21:58:14
• @LastEditors: Please set LastEditors
• @Description: In User Settings Edit
• @FilePath: \undefinedx:\C\书本作业\5-2.c */

#include<stdio.h>

int main(int argc, char *argv[])

{

int counter, i = 0;

printf("PRINT COUNTINUE 10 NUMBERS！\n");

printf("PLEAE IPUT THE START NUMBER :");

scanf("%d",&counter);

while(i++ < 11){

    printf(" %d \n",counter++);
	
}

printf("PROGRAM EXIT!\n");

return 0;

}

5-3

/*

• @Author: your name
• @Date: 2020-11-15 21:51:44
• @LastEditTime: 2020-11-15 21:57:41
• @LastEditors: Please set LastEditors
• @Description: In User Settings Edit
• @FilePath: \undefinedx:\C\书本作业\5-3.c */ #include<stdio.h>

#define WEEK_PER_DAY 7

int main(int argc, char *argv[])

{

int days, weeks, input;

printf("CONVERT DAYS TO WEEKS!\n");

printf("PLEASE INPUT THE OF NUMBER OF DAYS( <=0 TO QUIT ):");

scanf("%d",&input);

while(input > 0){

weeks = input/WEEK_PER_DAY;

days = input%WEEK_PER_DAY;

printf("%d days are %d weeks, %d days\n",input,weeks,days);

printf("PLEASE INPUT THE NUMBER OF DAYS( <=0 TO QUIT ):");

scanf("%d,&input

}

printf("PROGRAM EXIT!\n");

return 0;

} 5-4

/*

• @Author: your name
• @Date: 2020-11-15 21:52:07
• @LastEditTime: 2020-11-15 21:55:44
• @LastEditors: Please set LastEditors
• @Description: In User Settings Edit
• @FilePath: \undefinedx:\C\书本作业\5-4.c */ #include<stdio.h>

#define FEET_TO_CM 30.48

#define INCH_TO_CM 2.54

int main(int argc,char *argv[])

{

int feet;

float inches, cm;

printf("CONVERT CM TO INCHES!\n");

printf("'Enter the height in centimeters:");

scanf("%f",&cm);

while(cm > 0)

{

feet + cm/FEET_TO_CM;

inches = (cm - feet*FEET_TO_CM)/INCH_TO_CM;

printf("%.1f cm = %d feet , %.1f inches\n",cm,feet,inches);

printf("Enter the height in centimeters( <=0 TO QUIT ):");

scanf("%f",&cm);

}

printf("PROGRAM EXIT!\n");

return 0;

} 5-5

/*

• @Author: your name
• @Date: 2020-11-15 22:10:44
• @LastEditTime: 2020-11-15 22:11:28
• @LastEditors: Please set LastEditors
• @Description: In User Settings Edit
• @FilePath: \undefinedx:\C\书本作业\5-5.c */

#include<stdio.h>

int main(int argc, char *argv[])

{

int count = 0, sum = 0;

printf("Enter the nember of days you work:");

scanf("%d",&count);

while(count > 0)

{

    sum = sum + count--;
	
}
printf("You earned $ %d total!\n",sum);

printf("PROGRAM EXIT!\n");

return 0;

} 5-6

/*

• @Author: your name
• @Date: 2020-11-15 21:56:03
• @LastEditTime: 2020-11-15 21:57:12
• @LastEditors: Please set LastEditors
• @Description: In User Settings Edit
• @FilePath: \undefinedx:\C\书本作业\5-5.c */ #include<stdio.h>

int main(int argc, char *argv[])

{

int count = 0, sum = 0 ;

printf("Enter the number of days you work:");

scanf("%d",&count);

while(count > 0){

    sum = sum + count * count;
	
    count--;
	
}

printf("You earned $ %d total!\n",sum);

printf("PROGRAM EXIT!\n");

return 0;

} 5-7

/*

• @Author: your name
• @Date: 2020-11-15 21:59:33
• @LastEditTime: 2020-11-15 22:10:07
• @LastEditors: Please set LastEditors
• @Description: In User Settings Edit
• @FilePath: \undefinedx:\C\书本作业\5-7.c */

#include<stdio.h>

double cubic(double n);

int main(int argc, char *argv[])

{

double input;

printf("Enter the double to calc cubic :");

scanf("%1f",&input);

printf("PROGRAM EXIT!\n");

return 0;

}

double cubic(double n)

{

double t = n * n * n;

printf("The %lg's cubic is %lg !\n",n,t);;

return 0;

} 5-8

/*

• @Author: your name
• @Date: 2020-11-15 22:02:43
• @LastEditTime: 2020-11-15 22:03:13
• @LastEditors: Please set LastEditors
• @Description: In User Settings Edit
• @FilePath: \undefinedx:\C\书本作业\5-8.c */

#include<stdio.h>

int main(int argc, char *argv[])

{

int first,second;

printf("This program computes moduli.\n");

printf("Enter an integer to server as the second operand:");

scanf("%d",&second);

while(first > 0){

    printf("%d %% %d is %d\n",first,second,(first%second));
	
    printf("Enter next number for first operand( <= 0 to quit):");
	
    scanf("%d",&first);
	
}

printf("Done!\n");

return 0;

} 5-9

/*

• @Author: your name
• @Date: 2020-11-15 22:00:06
• @LastEditTime: 2020-11-15 22:02:08
• @LastEditors: Please set LastEditors
• @Description: In User Settings Edit
• @FilePath: \undefinedx:\C\书本作业\5-8.c */ #include<stdio.h>

int Temperatures(double fahrenheit);

int main(int argc,char *argv[])

{

double input;

printf("This program convert fahrenheit to celsius and kelvin.\n");

printf("Enter a fahrenheit to start :");

while(scanf("%1f",&input) == 1){

    Temperatures(input);
	
    printf("Enter next fahrenheit! ( q to quit): ");
}

printf("Done!\n");

return 0;

}

int Temperatures(double fahrenheit)

{ const double F_TO_C = 32.0;

const double C_TO_K = 273.16;

double celsius ,kelvin;

celsius = 5.0/9.0*(fahrenheit - F_TO_C);

kelvin = celsius + C_TO_K;

printf("%.2f. fahrenheit, equal %.2f celsius,and %.sf kelvin\n",fahrenheit, celsius,kelvin);

return 0;

}

来源：oschina

链接：https://my.oschina.net/u/4776679/blog/4718531