C语言如何从键盘输入任意3个数,按从小到大的顺序输出？ 求C语言编程，要求输入任意三个数，按从小到大的顺序输出。
C\u8bed\u8a00\u7f16\u7a0b\u9898,\u4ece\u952e\u76d8\u8f93\u5165\u4efb\u610f3\u4e2a\u6570,\u6309\u4ece\u5c0f\u5230\u5927\u7684\u987a\u5e8f\u8f93\u51fa\u4ee3\u78011.
// \u8f93\u51653\u4e2a\u6570\uff0c\u8981\u6c42\u6309\u4ece\u5c0f\u5230\u5927\u987a\u5e8f\u8f93\u51fa #include int main() { int a,b,c,t; printf("\u8bf7\u8f93\u5165\u4e09\u4e2a\u6570\uff1a"); scanf("%d%d%d",&a,&b,&c); if(a > b) { t = a; a = b; b = t; } if(a > c) { t = a; a = c; c = t; } if(b > c) { t = b; b = c; c = t; } printf("\u4ece\u5c0f\u5230\u5927\u7684\u987a\u5e8f\u662f\uff1a%d %d %d\n",a,b,c); return 0; }\u4ee3\u78012.
\u8f93\u51653\u4e2a\u5b57\u7b26\u4e32\uff0c\u6309\u4ece\u5c0f\u5230\u5927\u987a\u5e8f\u8f93\u51fa\u3002 //\u5148\u7528\u7a0b\u5e8f\u5bf9\u4e09\u4e2a\u6570\u8fdb\u884c\u4ece\u5c0f\u5230\u5927\u6392\u5e8f\uff0c\u7136\u540e\u4fee\u6539\u7a0b\u5e8f#include#includeint main(){void swap(char *pt1,char *pt2); char a[20],b[20],c[20]; char *p1,*p2,*p3; printf("\u8bf7\u8f93\u5165\u4e09\u4e2a\u5b57\u7b26\u4e32:"); gets(a); gets(b); gets(c); //\u6216\u7528scanf("%s,%s,%s",a,b,c); p1=&a[0];p2=&b[0];p3=&c[0];//\u4e09\u4e2a\u6307\u9488\u5206\u522b\u6307\u5411\u4e09\u4e2a\u5b57\u7b26\u6570\u7ec4 if(strcmp(*p1,*p2)>0)swap(p1,p2);//if(strcmp(a,b)>0)swap(a,b); //\u6bd4\u8f83\u4e24\u4e2a\u5b57\u7b26\u4e32\u7684\u5927\u5c0f\uff0c\u4e3a\u4ec0\u4e48\u7528\u524d\u4e00\u53e5\u7684\u65f6\u5019\u4f1a\u51fa\u73b0\u8b66\u544a\u5462 if(strcmp(a,c)>0)swap(a,c);//if(strcmp(*p1,*p3)>0)swap(*p1,*p3); if(strcmp(b,c)>0)swap(b,c);// if(strcmp(*p2,*p3)>0)swap(*p2,*p3); printf("\u7531\u5c0f\u5230\u5927\u6392\u5217\uff1a%s\n%s\n%s\n",a,b,c); return 0;}void swap(char *pt1,char *pt2){ char t[20]; strcpy(t,pt1); strcpy(pt1,pt2); strcpy(pt2,t);//t=*pt1;*pt1=*pt2;*pt2=t;}\u4ee3\u78013.
#include #include #define SIZE 3 #define LEN 50 int main(void) { char str[SIZE][LEN]; char (*pst)[LEN]=str; char temp[LEN]; int i,j; printf("Please enter 3 string.\n"); for(i=0;i<SIZE;i++) { fgets(*(pst+i),LEN,stdin); } printf("Befor sort:\n"); for(i=0;i<SIZE;i++) { fputs(*(pst+i),stdout); } for(i=0;i<SIZE-1;i++) for(j=i+1;j<SIZE;j++) { if(strcmp(*(pst+i),*(pst+j)) == 1) { strcpy(temp,*(pst+i)); strcpy(*(pst+i),*(pst+j)); strcpy(*(pst+j),temp); } } printf("After sort:\n"); for(i=0;i<SIZE;i++) { fputs(*(pst+i),stdout); } }
\u6709\u4e24\u79cd\u65b9\u6cd5\uff0c\u5192\u6ce1\u6cd5\u548c\u6bd4\u8f83\u6cd5\u3002
\u5192\u6ce1\u6cd5\u7275\u6d89\u5230\u6570\u7ec4\uff0c\u8003\u8651\u4f60\u662f\u521d\u5b66\u8005\uff0c\u5c31\u4e0d\u8bf4\u4e86\uff0c\u6709\u5174\u8da3\u81ea\u5df1\u53bb\u770b\u3002
\u6bd4\u8f83\u6cd5\uff1a
main(void)//main\u51fd\u6570\u7a0b\u5e8f\u7684\u5165\u53e3
{
int num1,num2,num3,temp;//\u5b9a\u4e49\u53d8\u91cf\u5b58\u653e\u4e09\u4e2a\u6570\u503c\u548c\u4e34\u65f6\u53d8\u91cf
printf("please input three numbers");//\u663e\u793a"please input three numbers"
scanf("%d,%d,%d",&num1,&num2,&num3);//\u8f93\u5165\u4e09\u4e2a\u6570\u5b57
if(num1>num2){temp=num1,num1=num2,num2=temp}//\u4ea4\u6362\u6570\u5b57\u987a\u5e8f
if(num2>num3){temp=num2,num2=num3,num3=temp}//\u4ea4\u6362\u6570\u5b57\u987a\u5e8f
if(num1>num3){temp=num1,num1=num3,num3=temp}//\u4ea4\u6362\u6570\u5b57\u987a\u5e8f
printf("three numbers after sorted: %d,%d,%d/n",num1,num2,num3);//\u4f9d\u6b21\u8f93\u51fa3\u4e2a\u6570
}
\u5e0c\u671b\u6211\u7684\u89e3\u7b54\u8ba9\u4f60\u6ee1\u610f\u3002
代码1.
// 输入3个数，要求按从小到大顺序输出
#include <stdio.h>
int main()
{
int a,b,c,t;
printf("请输入三个数：");
scanf("%d%d%d",&a,&b,&c);
if(a > b)
{
t = a;
a = b;
b = t;
}
if(a > c)
{
t = a;
a = c;
c = t;
}
if(b > c)
{
t = b;
b = c;
c = t;
}
printf("从小到大的顺序是：%d %d %d
",a,b,c);
return 0;
}
代码2.
输入3个字符串，按从小到大顺序输出。 //先用程序对三个数进行从小到大排序，然后修改程序
#include<stdio.h>
#include<string.h>
int main()
{void swap(char *pt1,char *pt2);
char a[20],b[20],c[20];
char *p1,*p2,*p3;
printf("请输入三个字符串:");
gets(a);
gets(b);
gets(c);
//或用scanf("%s,%s,%s",a,b,c);
p1=&a[0];p2=&b[0];p3=&c[0];//三个指针分别指向三个字符数组
if(strcmp(*p1,*p2)>0)swap(p1,p2);//if(strcmp(a,b)>0)swap(a,b); //比较两个字符串的大小，为什么用前一句的时候会出现警告呢
if(strcmp(a,c)>0)swap(a,c);//if(strcmp(*p1,*p3)>0)swap(*p1,*p3);
if(strcmp(b,c)>0)swap(b,c);// if(strcmp(*p2,*p3)>0)swap(*p2,*p3);
printf("由小到大排列：%s
%s
%s
",a,b,c);
return 0;
}
void swap(char *pt1,char *pt2)
{ char t[20];
strcpy(t,pt1);
strcpy(pt1,pt2);
strcpy(pt2,t);
//t=*pt1;*pt1=*pt2;*pt2=t;
}
代码3.
#include<stdio.h>
#include<string.h>
#define SIZE 3
#define LEN 50
int main(void)
{
char str[SIZE][LEN];
char (*pst)[LEN]=str;
char temp[LEN];
int i,j;
printf("Please enter 3 string.
");
for(i=0;i<SIZE;i++)
{
fgets(*(pst+i),LEN,stdin);
}
printf("Befor sort:
");
for(i=0;i<SIZE;i++)
{
fputs(*(pst+i),stdout);
}
for(i=0;i<SIZE-1;i++)
for(j=i+1;j<SIZE;j++)
{
if(strcmp(*(pst+i),*(pst+j)) == 1)
{
strcpy(temp,*(pst+i));
strcpy(*(pst+i),*(pst+j));
strcpy(*(pst+j),temp);
}
}
printf("After sort:
");
for(i=0;i<SIZE;i++)
{
fputs(*(pst+i),stdout);
}
}
代码1.
// 输入3个数，要求按从小到大顺序输出
#include <stdio.h>
int main()
{
int a,b,c,t;
printf("请输入三个数：");
scanf("%d%d%d",&a,&b,&c);
if(a > b)
{
t = a;
a = b;
b = t;
}
if(a > c)
{
t = a;
a = c;
c = t;
}
if(b > c)
{
t = b;
b = c;
c = t;
}
printf("从小到大的顺序是：%d %d %d\n",a,b,c);
return 0;
}
代码2.
输入3个字符串，按从小到大顺序输出。 //先用程序对三个数进行从小到大排序，然后修改程序
#include<stdio.h>
#include<string.h>
int main()
{void swap(char *pt1,char *pt2);
char a[20],b[20],c[20];
char *p1,*p2,*p3;
printf("请输入三个字符串:");
gets(a);
gets(b);
gets(c);
//或用scanf("%s,%s,%s",a,b,c);
p1=&a[0];p2=&b[0];p3=&c[0];//三个指针分别指向三个字符数组
if(strcmp(*p1,*p2)>0)swap(p1,p2);//if(strcmp(a,b)>0)swap(a,b); //比较两个字符串的大小，为什么用前一句的时候会出现警告呢
if(strcmp(a,c)>0)swap(a,c);//if(strcmp(*p1,*p3)>0)swap(*p1,*p3);
if(strcmp(b,c)>0)swap(b,c);// if(strcmp(*p2,*p3)>0)swap(*p2,*p3);
printf("由小到大排列：%s\n%s\n%s\n",a,b,c);
return 0;
}
void swap(char *pt1,char *pt2)
{ char t[20];
strcpy(t,pt1);
strcpy(pt1,pt2);
strcpy(pt2,t);
//t=*pt1;*pt1=*pt2;*pt2=t;
}
代码3.
#include<stdio.h>
#include<string.h>
#define SIZE 3
#define LEN 50
int main(void)
{
char str[SIZE][LEN];
char (*pst)[LEN]=str;
char temp[LEN];
int i,j;
printf("Please enter 3 string.\n");
for(i=0;i<SIZE;i++)
{
fgets(*(pst+i),LEN,stdin);
}
printf("Befor sort:\n");
for(i=0;i<SIZE;i++)
{
fputs(*(pst+i),stdout);
}
for(i=0;i<SIZE-1;i++)
for(j=i+1;j<SIZE;j++)
{
if(strcmp(*(pst+i),*(pst+j)) == 1)
{
strcpy(temp,*(pst+i));
strcpy(*(pst+i),*(pst+j));
strcpy(*(pst+j),temp);
}
}
printf("After sort:\n");
for(i=0;i<SIZE;i++)
{
fputs(*(pst+i),stdout);
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