for (cin >> ch; ch = '#'; cin >>

for (cin >> ch; ch = '#'; cin >> 请问cin.get(ch)和ch = cin.get()的区别? (ch>='0'&&ch ch=(ch>='A'&&ch (ch>='a' && ch='A' && ch ch=(ch>='a'&&ch ch=（ch>='A'&& return (ch>='0' && ch >CH-CH main(){ char ch ; scanf(%c,&ch); ch=(ch>='a'&&ch C语言问题(假定输入为Go west,young man!)#includeint mian(void){char ch;scanf(%c,&ch);for(ch='$';ch!='g';scanf(%c,&ch))putchar(ch);return 0; } C语言 ch=（ch>='A'&& ch 程序语句if ( ch >= '0' && ch = '0' && ch CH3-CH=CH-C≡CH 如何命名? CH2=CH-CH=CH2是什么? CH3CH=CH-CH=CH2 + Br2? while(ch!='n'&&ch!='N'); CH2=CH-CH(CH3)-CH2OH是什么?