代码语言:txt 复制 # 定义一个函数 def print_variable(variable): print(variable) # 定义一个变量 my_variable = "Hello, World!" # 调用函数并传入变量作为参数 print_variable(my_variable) # 使用循环调用变量 for i in range(5): print(my_variable) 在上述代码中,我们首先定义了一个名为print_varia...
pass try: for i in range(10): if i==5: raise BreakLoop except BreakLoop: print("已提前退出循环") ``` 第三步:使用函数封装实现外部退出 我们还可以将循环代码封装到一个函数中,在函数内部通过return来提前退出循环。以下是一个示例: ```python def loop_function(): for i in range(10): if ...
for Loop with Python range() In Python, the range() function returns a sequence of numbers. For example, # generate numbers from 0 to 3 values = range(0, 4) Here, range(0, 4) returns a sequence of 0, 1, 2 ,and 3. Since the range() function returns a sequence of numbers, we...
And not just the range function, you could even concatenate list, tuples, etc. Remember that chain method returns a generator object, and to access the elements from that generator object, you can either use a for loop or use list and pass the generator object as an argument to it. ...
Therange()function is commonly used infor loopto iterate the loop a certain number of times. For example, # iterate the loop five timesforiinrange(5):print(f'{i}Hello') Run Code 0 Hello 1 Hello 2 Hello 3 Hello 4 Hello Also Read: ...
这整个吃过程叫做一个循环(loop),每吃一次的过程叫做一次迭代(iteration)。某些人把loop和iteration都翻译做循环,其实他们是有差异的,就像method和function(method和function的差异还没这么大)。 在正式介绍循环语句之前,我们先学点预备知识。 函数 什么是函数?这是一个不太好回答的问题。我们暂且把函数理解为‘我们...
In a for loop, the integer mentioned inside the range function is the range or the number of times the control needs to loop and execute the code in the for loop's clause. Note that the range() function's count starts from 0 and not from 1. That means that, in the above example,...
Using the range() function: forxinrange(6): print(x) Try it Yourself » Note thatrange(6)is not the values of 0 to 6, but the values 0 to 5. Therange()function defaults to 0 as a starting value, however it is possible to specify the starting value by adding a parameter:range...
foriinrange(my_list_length): output_list.append(i * 2) returnoutput_list 通过将列表长度计算移出for循环,加速1.6倍,这个方法可能很少有人知道吧。 # Summary Of Test Results Baseline: 112.135 ns per loop Improved: 68.304 ns per loop % Impro...
deftest_loop(): foriinrange(10): print(i) 上面的代码对应的字节码如下所示: 8 0 LOAD_GLOBAL 0 (range) 2 LOAD_CONST 1 (10) 4 CALL_FUNCTION 1 6 GET_ITER >> 8 FOR_ITER 12 (to 22) 10 STORE_FAST 0 (i) 9 12 LOAD_GLOBAL 1 (print) ...