C语言，从键盘输入一个大写字母，要求改用小写字母输出
import java.util.Scanner;
public class Aa ;
public Aa(){}
public static void main(String[] args) {
Aa aa=new Aa();
Scanner scan=new Scanner(System.in);
String a=scan.next();
char A=a.charAt(0);
char B=(char) (A+32);
System.out.print(B);
}
}
绛旓細include<stdio.h> include<stdlib.h> void main(){ char a[50];printf("璇疯緭鍏ヤ竴涓ぇ鍐欏瓧姣嶏細\n");scanf("%s",a);while(a[0]<'A'||a[0]>'Z'||a[1]!='\0'){ printf("鍙兘杈撳叆涓涓ぇ鍐欏瓧姣嶏紝璇烽噸鏂拌緭鍏ワ細\n");scanf("%s",a);} printf("%c涓哄瓧姣嶈〃涓%d涓瓧姣嶏紒\n",a...
绛旓細浠ｇ爜濡備笅锛歩nclude<stdio.h>int main(){char a; printf("璇杈撳叆涓涓ぇ鍐鑻辫瀛楁瘝锛");scanf("%c",&a);printf("杞崲鎴愬皬鍐欏瓧姣嶄负%c",a+32);} 杩愯缁撴灉濡備笅锛
绛旓細prinft("澶у啓瀛楁瘝鏄細%c\n",ch);} else(printf("璇杈撳叆澶у啓瀛楁瘝");)绀轰緥涓夛細include <stdio.h> main(){ char c; //澹版槑鍙橀噺 scanf("%c",&c); //閿洏涓婂彇鍊 printf("%c %c",c,ch-'a'+'A');//鏈韩鍜屽ぇ鍐欒緭鍑 } ...
绛旓細main(){ char ch;printf("璇杈撳叆涓涓ぇ鍐欏瓧姣锛");scanf("%c",&ch);printf("鍓嶅瀛楁瘝锛%c\n",ch-1);printf("杈撳叆瀛楁瘝锛%c\n",ch);printf("鍚庣画瀛楁瘝锛%c\n",ch+1);}
绛旓細,'u','v','w','x','y','z'};printf(" 璇杈撳叆涓涓瀛楃锛");zf1=getchar();if(isupper(zf1)){ zf2=zf1+32;for(i=0;i<26;i++)if(zf2==zf[i])printf(" 瀛楃 %c 鍦ㄨ嫳鏂瀛楁瘝涓殑浣嶇疆鏄細绗 %d 涓猏n",zf1,i+1);} else for(i=0;i<26;i++)if(zf1==zf[i]...
绛旓細printf("Input error! Please input a character(A~Z):"); scanf("%c", &ch); } if (ch == 'Z') printf("%c %c\n", 'A', ch + 32); else printf("%c %c\n", ch + 1, ch + 32); return 0;} ...
绛旓細鍙互鍙傝冧笅闈㈢殑浠ｇ爜锛歩nclude<stdio.h> void main(){ char a[10];while(gets(a)){ //杈撳叆涓涓瀛楃鍥炶溅涓娆″氨鏈変竴涓瓟妗 if(a[0]>=65&&a[0]<=90) //澶у啓瀛楁瘝 printf("A");else if(a[0]>=97&&a[0]<=122) //灏忓啓瀛楁瘝 printf("a");else if(a[0]>=48&&a[0]<=57) //...
绛旓細include <stdio.h> int main(){ char c;printf("input a upper case letter:");scanf("%c",&c);if (c>='A' && c<='Z'){ printf("\n%c %c %c\n",c-1,c,c+1);} else printf("It is not a upper case letter\n");return 0;} ...
绛旓細include <stdio.h> void main(){ char x;printf("璇杈撳叆澶у啓瀛楁瘝¸:\n");scanf("%c",&x);while(x>='A') //涓嶢姣旇緝,鏈埌A灏辩户缁緭鍑,濡傛灉鏈変笉鏄庤繖涓姝,璇峰幓浜嗚ВASCII鐮佽〃涓ぇ鍐欏瓧姣嶇殑鐮佸.{ printf("%c ",x); //寮哄埗杈撳嚭瀛楁瘝 x--; //閫掑噺,鍗矰->C->B->A } }...
绛旓細void main(){ char str;scanf("%c",&str);printf("%d,%c",str,str);printf("%d,%c",str+('a'-'A'),str+('a'-'A'));}
