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CH≡CH和CH2＝CH－CH=CH2 CH3－CH=CH2和CH3－CH2－CH=CH2 
CH3－CH3和CH3－CH=CH2 CH2= CH2
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CH3CH2CH3 CH3 CH2CH2－ ―CH2CH2CH2― （CH3 )2CH－
CH3 CH2 CH2 CH2CH3 CH3CH2CH3 CH3CH2CH2CH3 C.(CH3)4
CH3—CH3 和CH3—CH＝CH2 CH3—CH＝CH2 和 CH2—CH2—CH＝CH2 CH3—CH2—CH3 和CH3—CH＝CH2 CH3—CH2CH2—CH3 和 CH3—CH2—OH
CH3－CH=CH2和CH3－CH2－CH=CH2 CH3－CH3和CH3－CH=CH2
CH3－CH2－CH3和CH3－CH=CH2 CH3－CH2－CH2－CH3和CH3－CH2－CHCl2
-CH2OH>-CH2NH2>-CH2C（CH3）3 -CH2NH2>-CH2OH>-CH2C（CH3）3 -CH2C（CH3）3>-CH2NH2>-CH2OH -CH2NH2>-CH2C（CH3）3>-CH2OH
CH 3 -CH=CH-CH 3 CH 3 -CH 2 OH CH 2 =CH-CH 2 -CH=CH 2 CH 2 =CH-CH=CH-CH 3
CH3CH2CH3和CH3CH2CH2CH3 H2NCH2COOH和CH3CH2NO2 CH3CH2COOH和CH3COOCH2CH3 CH2==CHCH2和CH2==CHCH==CH2
CH2=CH-CH=CH2 CH2=CH-CH2-CH3 CH3-CH-C=CH2 CH2=CH2-CH-CH3
CH3-CH2-CH2-CH3 CH3-CH2-CH2-OH CH2=CH2 CH3-CH=CH-CH=CH-CH3
CH3-OOC-CH2CH3 (CH3)2CH-O-CH(CH3)2 CH3-OOC-CH2-COO-CH3 CH3CH2-OOC-CH2CH2-COO-CH2CH3
CH3—CH3 和CH3—CH＝CH2 CH3—CH＝CH2 和 CH3—CH2—CH＝CH2 CH3—CH2—CH3 和CH3—CH＝CH2 CH3—CH2CH2—CH3 和 CH3—CH2—OH
CH3-OOC-CH2CH3 （CH3）2CH-O-CH（CH3）2 CH3-OOC-CH2-COO-CH3 CH3CH2-OOC-CH2CH2-COO-CH2CH3
若ch1==ch2,则 strcmp(ch1,ch2)返回1 若ch1==ch2,则 strcmp(ch1,ch2)返回0 若ch1＞ch2,则 strcmp(ch1,ch2)返回1 若chi＜ch2,则 strcmp(ch1,ch2)返回1
CH3－CH=CH2和CH3－CH2－CH=CH2 CH3－CH3和CH3－CH=CH2 CH3－CH2－CH3和CH3－CH=CH2 CH3－CH2－CH2=CH2和CH3－CH2－CH3
CH3CH2CH2CH3和CH3CH＝CHCH3 CH2＝CHCH2CH3和CH3CH＝CHCH3 CH≡CCH2CH3和CH2＝CHCH2CH3 CH2＝CHCH3和CH2＝CHCH2CH3
CH3-OOC-CH2CH3 (CH3)2CH-O-CH(CH3)2 CH3-OOC-CH2-COO-CH3 CH3CH2-OOC-CH2CH2-COO-CH2CH3
CH3cH2CH（CH3）cH（CH3）2 CH3C（CH3）2CH2CH3 CH3CH2CH2CH（CH3）CH（CH3）2 CH3CH2CH3
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