一个查询中 用到了 sum , 可是返回结果的小数有很多位 , 都不准确了..类似js中的小数运算一样...不太熟悉C#,不知道这问题是因为double的关系 , 还是因为代码写的问题 , 通过 sql server profile 获取的sql语句执行后都是没有问题的 这是我的代码: var query = db.SupDataGreenAccount1 .Where(lambda) .GroupBy( p => new{ p.ObjPos , p.District , p.Feature }…

Given a nested list of integers, return the sum of all integers in the list weighted by their depth. Each element is either an integer, or a list -- whose elements may also be integers or other lists. Example 1: Given the list [[1,1],2,[1,1]], return…

Given a nested list of integers, return the sum of all integers in the list weighted by their depth. Each element is either an integer, or a list -- whose elements may also be integers or other lists. Example 1: Input: [[1,1],2,[1,1]] Output: 10 Expl…

Given a nested list of integers, return the sum of all integers in the list weighted by their depth. Each element is either an integer, or a list -- whose elements may also be integers or other lists. Different from the [leetcode]339. Nested List Wei…

原题 Given a nested list of integers, return the sum of all integers in the list weighted by their depth. Each element is either an integer, or a list -- whose elements may also be integers or other lists. Example 1: Given the list [[1,1],2,[1,1]], ret…

1.for循环 和while循环 for 临时变量 in 待遍历的数据: 循环体 (循环体这里一般加break,结束循环,执行else代码) else: 循环不满足条件执行的代码 while  表达式: 循环体 else: 循环不满足条件执行的代码 for 循环brek后,不会执行else后面的代码while循环break后,会执行else后面的代码 ## 获取字典所有的values for v in dic.values(): print(v) ## 获取键值对---相当于多变量的赋值 for…

             List1  [leetcode]243. Shortest Word Distance最短单词距离 Two Pointers [leetcode]244. Shortest Word Distance II最短单词距离(允许连环call) HashMap,  Merge Sort [leetcode]339. Nested List Weight Sum嵌套列表加权和 DFS, BFS [leetcode]364. Nested List Weight Sum II嵌…

Given a nested list of integers, return the sum of all integers in the list weighted by their depth. Each element is either an integer, or a list -- whose elements may also be integers or other lists. Example 1:Given the list [[1,1],2,[1,1]], return …

Given a nested list of integers, return the sum of all integers in the list weighted by their depth. Each element is either an integer, or a list -- whose elements may also be integers or other lists. Example 1:Given the list [[1,1],2,[1,1]], return …

  转载请注明出处:https://www.cnblogs.com/oceanicstar/p/9517159.html     ★像R语言里头有rep函数可以让向量的值重复,在python里面可以直接对列表用乘法让列表进行重复 注:这里生成的重复列表是个新列表(我们可以打印id查看一下)   a = [1,2] b = a * 3 a Out[1]: [1, 2] b Out[2]: [1, 2, 1, 2, 1, 2] id(a) Out[3]: 303757832 id(b) Out[4]…