gotoagain;if(ch=='Y'||ch=='y'#defineLEFT260unsignedcharzeroArea_3[4];if(line==10)

gotoagain;if(ch=='Y'||ch=='y'#defineLEFT260unsignedcharzeroArea_3[4];if(line==10) 跪求t*head,*p1,*p2;gotoagain;if(ch=='Y'||ch=='y0);nt, gotoagain;if(ch=='N'||ch=='n,intcurrent);scanf(%d, gotoagain;nFlag;i )if(pos_x>=0 程序语句if ( ch >= '0' && ch = '0' && ch return0;p=p->next;printf(Sorry!structproduct*p;gotoagain; C语言~main( ) { char ch; ch=getchar( ); if (ch>='A' && ch if else 和 if if 的区别if (ch == ' ')sp_ct++;else if (ch == ' ')nl_ct++;elseother++;和if (ch == ' ')sp_ct++;if (ch == ' ')nl_ct++;elseother++;这两个有什么区别 (ch>='0'&&ch c语言中 (ch-ch%32+26)-(ch%32-1));怎么理解?具体问题是这样的：main(){char ch;scanf(%c,&ch);if(ch>'A'&& ch=‘a’&& ch char a=0,ch; while((ch=getchar())!=' ') { if(a%2!=0&&(ch>='a'&&ch='a'&&ch //将ASCII码转化为16进制数BYTE ASCIIToHexChar(BYTE ch){if((ch>='0')&&(ch='A')&&(ch='a')&&(ch 怎么用程序转变大小写,如题if ___ ch=ch+32else if ___ ch=ch-32怎么填? ch==0xla是撒意思 if(ch==' '||ch==0xla) ch=(ch>='A'&&ch (ch>='a' && ch='A' && ch ch=(ch>='a'&&ch c语言 ch+=key什么意思,C语言文件加密中有这一段while((ch=fgetc(fp))!=EOF){ch+=key;if(ch>'z'||ch>'z'&&ch