'Blue','Green','White','Black']# Use the 'random.choice' function to select and print a random color from the 'color_list'print(random.choice(color_list))
In this tutorial, we will look at different ways to select a random item from a list. Let's assume you have a list with multiple Twitter user names and you are trying to select a random Twitter user. Below is a sample list of Twitter user names: twitter_user_names=['@rahulbanerjee99...
String form:[1,2,3]Length:3Docstring:Built-inmutable sequence.If no argument is given,the constructor creates anewemptylist.The argument must be an iterableifspecified.In[3]:print?Docstring:print(value,...,sep=' ',end='\n',file=sys.stdout,flush=False)Prints the values to a stream,or ...
for cat in cats for dog in dogs for item in list_of_items 4.1.3 避免缩进错误 我们可以在for循环中执行更多操作,也可以在for循环结束后执行操作。 rapstars = ['XMASwu','bbnoS','Rich Brian'] for rapstar in rapstars: print(f"{rapstar},that was a great show!") print(f"I can't to ...
copy() d['a'] = 88 print(d,d2) 㳀复制会简单复制对象内部的值,如果这值也是一个可变对象,这个可变对象是不会被复制的,也就是一个字典当中有一个子字典,复制的话只会复制外层的,内层的不会被复制,通过复制的字典修改内层字典中的元素的值,原来字典内层字典当中的值也会被改 代码语言:javascript 代码...
print("You are an adult.") elif age > 20: print("You are a young adult.") else: print("You are not an adult.") else语句: else语句用于当所有条件都不为真时执行的代码块,用于处理其他情况。 示例代码: age = 20 if age > 18: ...
4)在 for 循环语句中忘记调用 len() (导致“TypeError: 'list' object cannot be interpreted as an integer”) 反例: 正例: 5)尝试修改string的值(导致“TypeError: 'str' object does not support item assignment”) string是一种不可变的数据类型,该错误发生在如下代码中: ...
To pick out a random name from this list, we’ll userandom.choice(), which will select an item from the available data that is given. importrandom names=["John","Juan","Jane","Jack","Jill","Jean"]defselectRandom(names):returnrandom.choice(names)print("The name selected is: ",selec...
Python2和python3 版本不同,例如python2的输出是print'a',python3的输出是print('a'),封号可写可不写 注释:任何在#符号右面的内容都是注释 SyntaxError: invalid syntax语法错误 NameError: name 'raw_input' is not defined 由于python3.x系列不再有 raw_input函数,3.x中 input 和从前的 raw_input 等效,...
# Access a single item of Python List a = [52, 85, 41, 'sum', 'str', 3 + 5j, 6.8] # access 3rd item with index 2 x = a[2] print(x) print(type(x)) 1. 2. 3. 4. 5. 6. 执行和输出: 2.2. 访问 Python 列表中的多个项 ...