7, 4, 2, 8, 6, 9, 5] N = 3 # Example 1: Using list slicing # Get the last n elements from the list last_n_elements = mylist[-N:] # Example 2: Using list slicing last_n_elements = mylist[len(mylist)-N:] # Example 3: Using loop # Get the last n elements from the ...
dic= {"python3":123}print(dic.clear())Nonedef main():my_dict= {'子': '鼠', '丑': '牛', '寅': '虎', '卯': '兔','辰': '龙', '巳': '蛇', '午': '马', '未': '羊','申': '猴', '酉': '鸡', '戌': '狗', '亥': '猪'}print('子' in my_dict.keys()...
AI代码解释 studentList=studentList.stream().sorted(Comparator.comparing(Student::getAge).reversed()).collect(Collectors.toList());
print('取列表的前5项',my_list[0:4])#当0省略的时候默认为0,即为my_list[:4] print('取列表的第2-4项',my_list[1:4])#注意4是列表的第五项,但是在这里是不包含4的,所以没有第五项 print('取列表所有项,步长为2',my_list[::2])#步长为2,也就是走2步,所以间隔为1 print('取列表的逆序...
今天给大家准备了60个Python日常高频写法,如果觉得有用,那就点赞收藏起来吧～ 一、 数字 1 求绝对值 绝对值或复数的模 In [1]: abs(-6) Out[1]: 6 2 进制转化 十进制转换为二进制: In [2]: bin(10) Out[2]: '0b1010' 十进制转换为八进制: ...
remote_addr] + list(reversed(request.access_route)) # A possible ``client`` parameter is appended to the *end* of the path to client. if (not hasattr(request, "blueprint") or request.blueprint in ["validate_blueprint", "ttype_blueprint", "jwtauth"]) \ and "client" in request....
一、set set集合,是一个无序且不重复的元素集合 1.创建 se = {"123","456"} print (type(se)) s = set() #创建空集合 li = [11.22,11,22] s1 =set(li) print (s1) #以下为执行结果 <class 'set'> {11, 11.22, 22} 1. 2.
(x,y,c=y,cmap=cmap_original)ax1.set_title('How2matplotlib.com - Original Plasma')plt.colorbar(scatter1,ax=ax1)# 绘制反转色彩映射scatter2=ax2.scatter(x,y,c=y,cmap=cmap_reversed)ax2.set_title('How2matplotlib.com - Reversed Plasma')plt.colorbar(scatter2,ax=ax2)plt.tight_layout()...
ImportError: cannot import name 'get_config'from'tensorflow.python.eager.context' (/usr/local/lib/python3.7/dist-packages/tensorflow_core/python/eager/context.py) 我的代码: !pip install tf-nightly import tensorflow as tf from tensorflow.keras import datasets, layers, models ...
Can't get correct reversed string I tried both following, just cannot get the correct answer. Please let me know what is wrong: def stringcases(string): a = string.upper() b = string.lower() c = string.capitalize() d = list(string) d.reverse reve = "".join(d) tpl = (a, b,...