["foo","bar","baz"].index("bar")
'score':88},{'name':'Charlie','age':20,'score':92},]deffind_score_by_name(students,name):forstudentinstudents:ifstudent['name']==name:returnstudent['score']returnNonename='Bob'score=find_score_by_name(students,name)ifscoreisnotNone:print(f"The score of{name}is{score}.")else:print...
def find_k(test_list,k): flag=test_list[0] test_list.pop(0) l_list=[i for i in test_list if i < flag] r_list=[i for i in test_list if i >= flag] #结果递归的基线条件 if len(r_list)==k-1: return flag elif len(r_list)>k-1: return find_k(r_list,k) else: #因...
如果不相等就把下标为i的列表的值赋值给下标为k的列表，因为初始时k=i=0,意思就是取出当前项再赋值...
my_list = [1, 2, 3, 4, 3, 5] element = 3 indices = [index for index, value in enumerate(my_list) if value == element] if indices: print(f"元素 {element} 在列表中的索引值为 {indices}") else: print(f"元素 {element} 不在列表中") ...
1、list:列表 2、reverse:反向 3、true:真 4、false:假 5、append:附加 6、extend:扩展 7、insert:插入 8、pop:取出 9、remove:移除 10、del(delete):删除 11、clear:清除 12、sort:排序 八、集合 1、set:集合/设置 2、add:添加 3、update:更新 ...
去重seq[:]=[ x for x in seq if seq.count(x)<2] 列表常用函数 方法描述 L.append(x) 尾部追加 L.clear() 删除所有元素 L.count(x) L.copy() 备份 L.extend() 列表x扩充到列表L中 L.index(value[,star[,stop]]) 在指定范围内计算value的下标 L.insert(index,x) 在下标index的位置插入 ...
You can find a list of supported extensions at the OpenCensus repository.Note To use the OpenCensus Python extensions, you need to enable Python worker extensions in your function app by setting PYTHON_ENABLE_WORKER_EXTENSIONS to 1. You also need to switch to using the Application Insights ...
_init__(self,value):print("这是__init__方法")self.value=value# 在这里初始化对象的属性obj=...
list = ["a", "b", "c", "d"]for index, element in enumerate(list): print("Value", element, "Index ", index, )# ('Value', 'a', 'Index ', 0)# ('Value', 'b', 'Index ', 1)#('Value', 'c', 'Index ', 2)# ('Value', 'd', 'Index ', 3) 22. 执行时间 如下代...