number=5array=[1,2,3,4,6,7,8,9,10]ifnumbernotinarray:print("Number is not in the array")else:print("Number is in the array") 1. 2. 3. 4. 5. 6. 7. 上述代码中,我们先定义了一个数number和一个数组array。然后,使用not in关键字判断number是否不在array中。如果不在,则输出"Number ...
Python的组合数据类型将数据项集合在一起,以便在程序设计时有更多的选项。 组合数据类型 1、序列类型 Python提供了5中内置的序列类型:bytearray、bytes、list、str与tuple,序列类型支持成员关系操作符(in)、大小计算函数(len())、分片([]),并且是可可迭代的。 1.1 元组 元组是个有序序列,包含0个或多个对象引用,...
这里我们使用if语句来根据判断结果输出相应的提示信息。 4. 完整代码 下面是完整的代码: # 定义一个整数数组my_array=[1,2,3,4,5]# 输入要判断的元素element=input("请输入要判断的元素:")# 使用in操作符判断元素是否在数组中result=elementinmy_array# 输出判断结果ifresult:print("元素在数组中")else:pri...
tree=ET.parse('./resource/movie.xml')root=tree.getroot()all_data=[]formovieinroot:# 存储电影数据的字典 movie_data={}# 存储属性的字典 attr_data={}# 取出 type 标签的值movie_type=movie.find('type')attr_data['type']=movie_type.text# 取出 format 标签的值movie_format=movie.find('format...
n_pointsnumber of random numbers used to for estimation.n_repeatsnumber of times the test is repeated.only_timeif True will only print the time, otherwisewill also show the Pi estimate and a neat formattedtime."""start_time = time.time()for_inrange...
array.count(x) Return the number of occurrences of x in the array. array.itemsize The length in bytes of one array item in the internal representation. array.index(x) Return the smallest i such that i is the index of the first occurrence of x in the array. ...
print ( "Array after insertion : " , end = " " ) for i in (b): print (i, end = " " ) print () 输出: Array before insertion : 1 2 3 Array after insertion : 1 4 2 3 Array before insertion : 2.5 3.2 3.3 Array after insertion : 2.5 3.2 3.3 4.4 ...
s_in = sys.stdin while True: content = s_in.readline().rstrip('\n') if content == '': break print(content) sys.stdout标准输出,默认是控制台 import sys m = open('stdout.txt', 'w', encoding='utf8') sys.stdout = m print('hello') ...
(x, 0, 1)# convert to RGB arrayx *= 255if K.image_data_format() == 'channels_first':x = x.transpose((1, 2, 0))x = np.clip(x, 0, 255).astype('uint8')return xdef plot_filters(filters):newimage = np.zeros((16*filters.shape[0],8*filters.shape[1]))for i in range(...
(gradN, gradN.T)*k*Dz)# Element degree-of-freedom array, converted to zero basezedof = array(dof[zconn])-1# Assemble contribution from element 3for ro in arange(len(zedof)):for co in arange(len(zedof)):if (zedof[ro] < N_f):K[zedof[ro]...