长度 (Length):可以使用len()函数获取range对象表示的序列的长度，例如len(range(5))会返回 5。成员测试 (Membership Testing):可以使用in和not in运算符判断一个数字是否在range对象表示的序列中，例如3 in range(5)返回True。这些操作都得益于range对象实现了 **序列协议(Sequence Pro
start -> The starting point (included) of the range, which is set to 0 by default. start >范围的起点( 包括在内 ),默认情况下设置为0 。 stop -> The ending point (excluded) of the range stop ->范围的终点( 不包括 ) step -> The step size of the sequence, which is set to 1 by ...
Member_number: id numbers of customers Date: date of purchasing itemDescription: Item name Install necessary packages There are some packages that we should import first. 代码语言:javascript 代码运行次数:0 运行 AI代码解释 importnumpyasnpimportpandasaspdimportseabornassnsimportmatplotlib.pyplotasplt%matpl...
} System.out.println(); } }5.4 Python 冒泡排序def bubble_sort(arr): n = len...
# Python code to demonstrate range() vs xrange() # on basis of return type # initializing a with range() a = range(1,10000) # initializing a with xrange() x = xrange(1,10000) # testing the type of a print ("The return type of range() is : ") print (type(a)) # testing ...
1importthreading2importtime345classMyThread(threading.Thread):67defrun(self):8foriinrange(3):9time.sleep(1)10msg ="I'm"+self.name+":"+str(i)#name属性保存的是当前线程的名称11print(msg)121314if__name__=="__main__":15t =MyThread()16t.start() ...
for i in range(1, len(data)): if data[i] == data[i-1]: count += 1 else: encoded_data.append((data[i-1], count)) count = 1 # 处理最后一个字符 encoded_data.append((data[-1], count)) return encoded_data def run_length_decode(encoded_data): ...
defarea(type, *args):defrectangle(length, wide):return"长方形面积", length*widedefsquare(length):return"正方形面积", length**2defcirclar(radius):importmathreturn"圆形面积", math.pi*(radius**2)iftypeinlocals():returneval(type)(*args)print(area('rectangle', 133, 4))print(area('circlar...
(2)foriinrange(100):glBegin(GL_LINES)glVertex2f(TR* math.sin(2*PI/12* i),TR* math.cos(2*PI/12* i))glVertex2f(R * math.sin(2*PI/12* i), R * math.cos(2*PI/12* i))glEnd()glLineWidth(1)h_Length =0.2m_Length =0.3s_Length =0.4count =60.0s_Angle = s / countcount ...
eval(lua_code) for _ in range(thread_count) ] results = [None] * thread_count def mandelbrot(i, lua_func): results[i] = lua_func(image_size, i+1, thread_count) import threading threads = [ threading.Thread(target=mandelbrot, args=(i,lua_func)) for i, lua_func in enumerate(lua...