摘要：
import sysdef lt(a, b, c ): if b == "+": return int(a)+int(c) elif b == "-": return int(a)-int(c) elif b == "*": return int(a)*int(c) elif b == "/": r 阅读全文
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摘要：
import sysdef lt(a, b, c ): if b == "+": return int(a)+int(c) elif b == "-": return int(a)-int(c) elif b == "*": return int(a)*int(c) elif b == "/": r 阅读全文
摘要：
lt = [ {'name':'小王', 'age':18, 'info':[('phone', '123'), ('dizhi', '广州')]}, {'name':'小芳', 'age':19, 'info':[('phone', '789'), ('dizhi', '深圳')]}, {'nam 阅读全文
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