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单选题 给定字典d,以下选项中可以清空该字典并保留变量的是( )
学科：Python语言程序设计基础
时间：2023-05-10 12:52:50
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题目1单选题
Python语言的主网站网址是( )A. https://www.python123.org/B. https://pypi.python.org/pypiC. https://www.python.org/D. https://www.python123.io/
题目2单选题
利用print()格式化输出,能够控制浮点数的小数点后两位输出的是( )A. {.2f}B. {:.2}C. {.2}D. {:.2f}
题目3单选题
已有代码:s= 'Python is beautiful!' 则下列选项可以输出"python"的是( )A. print(s[0:6].lower())B. print(s[0:6])C. print(s[:–14])D. print(s[–21:–14].lower)
题目4单选题
>>>x = "Happy Birthday to you!">>>x * 3上面代码的执行结果是( )A. 系统报错B. Happy Birthday to youC. Happy Birthday to you!Happy Birthday to you!Happy Birthday to youD. 'Happy Birthday to you!Happy Birthday to you!Happy Birthday to you!'
题目5单选题
s1 = "The python language is a scripting language."s2 = s1.replace('scripting','general')print(s2)上面代码的输出结果是( )A. The python language is a scripting languageB. The python language is a general languageC. 系统报错D. ['The', 'python', 'language', 'is', 'a', 'scripting', 'language.']
题目6单选题
def hello_world(): print('ST',end="*")def three_hellos(): for i in range(3): hello_world()three_hellos()上面代码输出的结果为( )A. ST*ST*B. ST*ST*ST*C. ST*D. ***
题目7单选题
给定字典d,以下选项中可以清空该字典并保留变量的是( )A. d.clear()B. d.remove()C. d.pop()D. del d
题目8单选题
a = [1,3]b = [2,4]a.extend(b)print(a)上面代码的输出结果是( ).A. [1 ,2 ,3 ,4]B. [1, 3, 2, 4]C. [4 ,3 ,2 ,1]D. [4 ,2 ,3 ,1]
题目9单选题
str="中国加油,武汉加油"str.split()上述语句执行结果是( ).A. ['中国加油,武汉加油']B. 中国加油C. 武汉加油D. ["中国加油","武汉加油"]
题目10判断题
带有else子句的循环如果因为执行了break语句而退出的话,则会执行else子句中的代码.( )A. 对B. 错
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