摘要:
环境和国家 阅读全文
摘要:
l=['eat','sleep','drink'] l.append('study') l.pop() print(l) t=('eat','sleep','drink') scores=[10000,1000,100] d={'eat':10000,'sleep':1000,'drink':100} d['sleep']=999 d['study']=10 d.pop('sleep') 阅读全文