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nickchen = "nick handsome, height 180, age 18, weight 140" height = nickchen[22:25] print("nick的身高",height) weight = nickchen[-3:] print("nick的体重",weight) age = nickchen[-14:-12] print("nick的年龄",age) W = input("请输入您的体重") if W[-1:] == 'g': if W[-2] == 'm': kg = eval(W[:-2]) / 1000000 print(str(kg) + "kg") else: kg = eval(W[:-1]) / 1000 print(str(kg) + "kg") elif W[-3:] == 'jin': kg = eval(W[:-3]) / 2 print(str(kg) + "kg") else: print("请输入正确的体重！") x = input("输入第一个数：") y = input("输入第二个数：") z = input("请输入要进行的运算符号") if z == '+': sum1 = eval(x) + eval(y) print("相加的数值为：", sum1) elif z == '-': sum1 = eval(x) - eval(y) print("第一个数减去第二个数的数值为：", sum1) elif z == '*': sum1 = eval(x) * eval(y) print("相乘的数值为：", sum1) elif z == '/': sum1 = eval(x) / eval(y) print("第一个数除于第二个数的数值为：", sum1) else: print("请输入真确的运算符号") age1 = 21 age2 = input("请输入你猜想的年龄") if age1 == eval(age2): print("猜对了") elif age1 > eval(age2): print("小了") elif age1 < eval(age2): print("大了")