c语言中从键盘输入一个三位整数，输出他的逆序数 c语言 从键盘输入一个三位数，输出该数的逆序数。
C\u8bed\u8a00\u7f16\u7a0b:\u8f93\u51fa\u4e00\u4e2a3\u4f4d\u6574\u6570\u7684\u9006\u5e8f\u6570\uff0c\u5982\u8f93\u5165123\uff0c\u8f93\u51fa321.#include<stdio.h>
main()
{
int x,b0,b1,b2,s;
printf("inputx:");
scanf("%d",&x);
b2=x/100;
b1=(x-b2*100)/10;
b0=x%10;
s=b0*100+b1*10+b2;
printf("s=%d\n",s);
}
\u8fd0\u884c\u7ed3\u679c\uff1a
\u6269\u5c55\u8d44\u6599\uff1amain\u51fd\u6570\u7528\u6cd5
C++\u4e2d\u7684main\u51fd\u6570
C++\u7ee7\u627f\u4e86C\u8bed\u8a00\u7684\u5927\u90e8\u5206\u7279\u6027\uff0c\u56e0\u6b64\u4fdd\u7559\u4e86\u201c\u7a0b\u5e8f\u603b\u662f\u4ecemain\u51fd\u6570\u5f00\u59cb\u6267\u884c\uff0c\u4e14\u603b\u662f\u9ed8\u8ba4\u4ecemain\u51fd\u6570\u7684return\u8bed\u53e5\u6216\u7ed3\u5c3e\u5904\u7ed3\u675f\u8fd0\u884c\u201d\u8fd9\u4e00\u4f20\u7edf\uff0c\u4f46\u662f\u8981\u6ce8\u610f\uff0cC++\u4e2d\u7684main\u51fd\u6570\u8981\u60f3\u4f5c\u4e3a\u7a0b\u5e8f\u6267\u884c\u7684\u51fa\u5165\u53e3\uff0c\u5fc5\u987b\u5199\u5728\u5168\u5c40(Global)\u8303\u56f4\uff0c
\u4e0d\u80fd\u5199\u6210\u67d0\u4e2a\u7ed3\u6784\u4f53\u6216\u67d0\u4e2a\u7c7b\u7684\u6210\u5458\u3002\u867d\u7136main\u51fd\u6570\u53ef\u4ee5\u4f5c\u4e3a\u7ed3\u6784\u4f53\u6216\u8005\u7c7b\u7684\u6210\u5458\u51fd\u6570\uff0c\u4f46\u76f8\u5e94\u5730\u4f1a\u5931\u53bb\u4f5c\u4e3a\u7a0b\u5e8f\u51fa\u5165\u53e3\u7684\u529f\u80fd\u3002
C++\u4e2d\u5168\u5c40main\u51fd\u6570\u7684\u4e66\u5199\u683c\u5f0f\u4e0eC\u8bed\u8a00\u5b8c\u5168\u76f8\u540c\uff0c\u529f\u80fd\u4e5f\u5b8c\u5168\u76f8\u540c\uff0c\u4e14\u540c\u4e00C++\u7a0b\u5e8f\u540c\u6837\u53ea\u80fd\u6709\u4e00\u4e2a\u5168\u5c40main\u51fd\u6570\u3002
Java\u4e2d\u7684main\u51fd\u6570
Java\u540c\u6837\u662f\u4ee5main\u51fd\u6570\u4f5c\u4e3a\u7a0b\u5e8f\u6267\u884c\u51fa\u5165\u53e3\u7684\uff0c\u4f46Java\u4f5c\u4e3a\u201c\u66f4\u7eaf\u6d01\u201d\u7684\u9762\u5411\u5bf9\u8c61\u8bed\u8a00\uff0c\u5b83\u7684main\u51fd\u6570\u4e0eC/C++\u6709\u5f88\u5927\u7684\u4e0d\u540c\u3002
\u9996\u5148\uff0c\u8fd4\u56de\u503c\u7684\u6982\u5ff5\u6de1\u5316\uff0c\u5728Java Application\u4e2dmain\u4e0d\u5141\u8bb8\u8fd4\u56de\u503c\uff0c\u56e0\u6b64int main\u662f\u88ab\u7981\u6b62\u7684\uff0c\u5fc5\u987b\u4f7f\u7528void main\uff0cint main\u4ec5\u9650\u5728JavaBean\u4e2d\u4f7f\u7528\u3002
\u5176\u6b21\uff0cJava\u4e2d\u6240\u6709\u7684\u51fd\u6570\u5fc5\u987b\u5c5e\u4e8e\u7c7b\uff0c\u6ca1\u6709\u4ec0\u4e48\u5168\u5c40\u51fd\u6570\u4e00\u8bf4\uff0c\u56e0\u6b64main\u51fd\u6570\u4e0d\u80fd\u662f\u5168\u5c40\u6210\u5458\uff0c\u5fc5\u987b\u662f\u67d0\u4e2a\u7c7b\u7684\u6210\u5458\u3002
\u7b2c\u4e09\uff0c\u7531\u4e8emain\u51fd\u6570\u53d8\u6210\u4e86\u7c7b\u7684\u6210\u5458\u51fd\u6570\uff0c\u56e0\u6b64\u8981\u60f3\u76f4\u63a5\u88ab\u7cfb\u7edf\u8c03\u7528\uff0c\u8fd8\u5fc5\u987b\u4f7f\u7528public static\u4f7f\u5176\u6210\u4e3a\u9759\u6001\u51fd\u6570\u5e76\u5177\u6709\u516c\u5f00\u6743\u9650\u3002
\u7b2c\u56db\uff0cmain\u51fd\u6570\u7684\u53c2\u6570\u88ab\u7b80\u5316\uff0c\u53ea\u9700\u8981\u63d0\u4f9b\u5b57\u7b26\u4e32\u6570\u7ec4\u5373\u53ef\uff0c\u4e0d\u9700\u8981\u63d0\u4f9b\u53c2\u6570\u4e2a\u6570(\u8fd9\u662f\u7531\u4e8eJava\u7684\u6570\u7ec4\u5177\u6709\u4e0b\u6807\u68c0\u67e5\u529f\u80fd\u7684\u539f\u56e0)
Java Application\u4e2d\u7684main\u51fd\u6570\u4e00\u822c\u683c\u5f0f\u5982\u4e0b(\u7c7b\u540d\u53ef\u4ee5\u81ea\u5b9a\u4e49\uff0c\u4f46\u4fdd\u5b58\u4e3aJava\u6e90\u7801\u65f6\uff0c\u4e3b\u6587\u4ef6\u540d\u5fc5\u987b\u4e0e\u7c7b\u540d\u76f8\u540c\uff0c\u5426\u5219\u53ef\u80fd\u65e0\u6cd5\u8fd0\u884c)
public class MainDemo{
public static void main(String[]args){
//TODO:\u5728\u6b64\u5904\u5199\u5165\u4e3b\u51fd\u6570\u7684\u5185\u5bb9
}
}
Java Applet\u7684\u8fd0\u884c\u673a\u5236\u4e0eJava Application\u5b8c\u5168\u4e0d\u540c\uff0c\u56e0\u6b64\u4e0d\u9700\u8981main\u51fd\u6570
C#\u4e2d\u7684main\u51fd\u6570
C#\u4e2d\u7684main\u51fd\u6570\u4e0eJava\u5927\u540c\u5c0f\u5f02\uff0c\u540c\u6837\u5fc5\u987b\u662f\u7c7b\u6210\u5458\uff0c\u540c\u6837\u4f7f\u7528\u5b57\u7b26\u4e32\u6570\u7ec4\u4f5c\u552f\u4e00\u53c2\u6570\uff0c\u540c\u6837\u662f\u9759\u6001\u51fd\u6570\uff0c\u540c\u6837\u7684void main\uff0c
\u4e0e\u4e4b\u4e0d\u540c\u7684\u662f\uff1amain\u7684\u9996\u5b57\u6bcd\u53d8\u6210\u4e86\u5927\u5199\uff0c\u5373"Main\u51fd\u6570\u201c\uff0c\u4e14\u662f\u5426\u9650\u5b9a\u4e3apublic\u7ea7\u522b\u5df2\u7ecf\u65e0\u6240\u8c13\u4e86(\u9ed8\u8ba4\u6ca1\u6709public\uff0c\u4f46\u67d0\u4e9b\u573a\u5408\u53ef\u80fd\u8fd8\u662f\u9700\u8981public)
\u53e6\u5916\uff0c\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0cC#\u4e2d\u4e0d\u518d\u6709\u201d\u7c7b\u540d\u5fc5\u987b\u4e0e\u4e3b\u6587\u4ef6\u540d\u540c\u540d\u201c\u7684\u9650\u5236\uff0c\u5373\u4f7f\u7c7b\u540d\u4e0d\u548c\u4e3b\u6587\u4ef6\u540d\u76f8\u540c\uff0c\u7a0b\u5e8f\u7167\u6837\u53ef\u4ee5\u8fd0\u884c\u3002
C#\u5e94\u7528\u7a0b\u5e8f\u4e2d\u7684main\u51fd\u6570\u9ed8\u8ba4\u662f\u8fd9\u6837\u7684(\u6ce8\u610fmain\u7684\u9996\u5b57\u6bcd\u5df2\u662f\u5927\u5199)
C#\u548cC/C++\u3001java\u4e0d\u540c\u7684\u662fC#\u4e0d\u5728\u62d8\u6ce5\u4e8e\u5fc5\u987b\u4ecemain()\u51fd\u6570\u5f00\u59cb\u6267\u884c\uff0cC#\u662f\u5c5e\u4e8e\u4e8b\u4ef6\u89e6\u53d1\u3002
class Program{
static void Main(string[]args){
c\u8bed\u8a00\u4e2d\u4ece\u952e\u76d8\u8f93\u5165\u4e00\u4e2a\u4e09\u4f4d\u6570\uff0c\u8f93\u51fa\u8be5\u6570\u7684\u9006\u5e8f\u6570\uff0c\u53ef\u4ee5\u53c2\u8003\u4ee5\u4e0b\u7684\u4ee3\u7801\uff1a
#include
int main()
{int x;
printf("\u8bf7\u8f93\u5165\u4e00\u4e2a\u4e09\u4f4d\u6570\uff1a");
scanf("%d",&x);
printf("%d%d%d\n",x%10,x/10%10,x/100);
return 0;
}
\u6269\u5c55\u8d44\u6599\uff1a
c\u8bed\u8a00\u4e2d\u7684\u4e00\u4e9b\u5176\u4ed6\u51fd\u6570
double pow10(int p) \u8fd4\u56de10^p\u7684\u503c
double sqrt(double x) \u8fd4\u56de+\u221ax\u7684\u503c
double cos(double x) \u8fd4\u56dex\u7684\u4f59\u5f26cos(x)\u503c,x\u4e3a\u5f27\u5ea6
double sin(double x) \u8fd4\u56dex\u7684\u6b63\u5f26sin(x)\u503c,x\u4e3a\u5f27\u5ea6
int rand() \u4ea7\u751f\u4e00\u4e2a\u968f\u673a\u6570\u5e76\u8fd4\u56de\u8fd9\u4e2a\u6570
\u53c2\u8003\u8d44\u6599\u6765\u6e90\uff1a\u767e\u5ea6\u767e\u79d1-C\u8bed\u8a00\u51fd\u6570
1.定义没有赋值。变量获得都是垃圾值。
2.算法很有问题.
#include<stdio.h>
#include<stdlib.h>
int main(void)
{
int number;
printf("输入一个三位数
");
scanf("%d",&number);
printf("%d",number%10);//一个整数余除10必然是它的个位数
printf("%d",number/10%10);//一个绝对值大于10的数先除以10再余除10必然是它的十位数，依次类推
printf("%d",number/100%10);
//这三个printf可以合起来写，我这样写是方便你们理解
system("PAUSE");
return 0;
}
没错啊..
#include<stdio.h>
#include<math.h>
main()
{
int x,a,b,c,y;
printf("请输入一个3位整数:");
scanf("%d",&x);
a=fabs(x/100);
if(x>0) b=fabs((x-a*100)/10);
if(x<0) b=fabs(x+a*100)/10;
c=fabs(x%10);
y=fabs(c*100+b*10+a);
printf("a=%d,b=%d,c=%d,y=%d\n",a,b,c,y);
return 0;
}
绛旓細浣犲彲浠ヨ繖鏍峰仛銆俰nt涓変釜鍙橀噺锛岀劧鍚庣粰姣忎釜鍙橀噺璧嬪硷紝鐒跺悗鍦ㄤ腑闂村姞涓鏉″垽鏂鍙ワ紝if.璇彞锛岀劧鍚庡皢杈撳嚭缁撴灉鏀规垚绌虹櫧锛屼篃灏辨槸绌烘牸锛岀劧鍚庡皢鏈鍚庤緭鍑虹粨鏋滃掔潃鎺掑簭銆傛瘮濡 int a锛宐锛c銆傜劧鍚庤緭鍑虹殑鏃跺檖rintf("锛卍锛卍锛卍",c锛宐锛宎);銆傝繖鏍峰氨琛屼簡锛屽緢绠鍗曪紝鍙槸璧嬪间笁涓湁鐐归夯鐑﹁屽凡銆
绛旓細%鈥濅负闄ゆ硶杩愮畻鍜屽彇妯★紙浣欙級杩愮畻銆傝繖棰樻槸寰堢畝鍗曠殑锛乪g锛歩nclude<stdio.h> int main(){ int num;scanf("%d",&num);if((99<num)&&(1000>num)){ printf("鐧句綅鏁板瓧锛%d\n",num / 100);printf("涓綅鏁板瓧锛%d\n",num % 10);} else { printf("鎮鐨勮緭鍏鏈夎锛");} return 0;} ...
绛旓細include "stdio.h"int main(){ int number; int a,b,c; printf("Please enter a number(100~999):"); scanf("%d",&number); a = number/100; b = (number-100*a)/10; c = number % 10; printf("The new number is:%d%d%d",c,b,a); return 0;} ...
绛旓細鍛靛懙锛岄偅鎴戝彂涓涓叏鐨勫惂锛屼竴妤肩殑鏈嬪弸鏈夌偣鎳掑晩锛乮nclude<stdio.h> void main(){ int num;int ge ;int shi ;int bai ;int s=0;printf("璇杈撳叆涓涓笁浣嶆暟\n");scanf("%d",&num);if(num>=100&&num<=999){ ge=num%10;shi = num/10%10;bai = num/100;s= ge+shi+bai;printf(...
绛旓細include <stdio.h> int func(int n){ int t;for(t=0;n;n/=10)t=t*10+n%10;return t>100&&t<1000?t:-1;} int main(){ int n;while(scanf("%d",&n)==1){ printf("%d\n",func(n));} return 0;} 璇风偣鍑杈撳叆鍥剧墖鎻忚堪 ...
绛旓細"input data must:0~999\n");a[0] = (num/100)%10;//鐧句綅a[1] = (num/10)%10; //鍗佷綅a[2] = num%10; //涓綅 if(a[0]>0) cnt=3; else if(a[1]>0) cnt=2; else cnt=1; printf("cnt=%d,data:",cnt)...
绛旓細include"stdio.h"include "math.h"void main(){ int a,i=-1;printf("璇杈撳叆涓涓笁浣嶆暟:\n");scanf("%d",&a);int b;while(a/10!=0){ i++;b=a%10;printf("绗%d浣嶆槸%d\n",i,b);a = a/10;} printf("绗%d浣嶆槸%d\n",++i,a);return;} ...
绛旓細include <stdio.h> void main(){ int i,a,b,c,n;scanf("%d",&n);for(i=100;i<=n;i++){ a=i / 100;b=i / 10 % 10;c=i % 10;if(a*b*c==32 && a+b+c==10)printf("%d\n",i);} }
绛旓細include<stdio.h> int main(){ int n,k=0;int a[11]={0};scanf("%d",&n);while(n){ a[k++]=n%10;//鎻愬彇鍚勪釜浣嶄笂鐨勬暟锛屽偍瀛樺湪鏁扮粍a涓 n/=10;} for(int i=0;i<k;i++)//鍐掓场鎺掑簭 for(int j=0;j<k-i-1;j++)if(a[j]>a[j+1]){ int t;t=a[j];a[j]=a[...
绛旓細include <stdio.h>int main(){ int a, g, s, b, s = 0; scanf ("%d", &a); g=a%10, s=a/10%10, b=s/100; s = g+s+b; printf ("%d\n", s); return 0;}
