nested

问题 I am using pyspark and I have a dataframe object df and this is what the output of df.printSchema() looks like root |-- M_MRN: string (nullable = true) |-- measurements: array (nullable = true) | |-- element: struct (containsNull = true) | | |-- Observation_ID: string (nullable = true) | | |-- Observation_Name: string (nullable = true) | | |-- Observation_Result: string (nullable = true) I would like to filter out all the arrays in 'measurements' where the Observation_ID is not '5' or '10'.

问题 Consider I have a variable that is a list of list of maps. Example: processes = [ [ {start_cmd: "a-server-start", attribute2:"type_a"}, {start_cmd: "a-worker-start", attribute2:"type_b"} {start_cmd: "a--different-worker-start", attribute2:"type_c"} ], [ {start_cmd: "b-server-start", attribute2:"type_a"}, {start_cmd: "b-worker-start", attribute2:"type_b"} ] ] In each iteration, I need to take out the array of maps, then iterate over that array and take out the values of the map. How do I

问题 Consider I have a variable that is a list of list of maps. Example: processes = [ [ {start_cmd: "a-server-start", attribute2:"type_a"}, {start_cmd: "a-worker-start", attribute2:"type_b"} {start_cmd: "a--different-worker-start", attribute2:"type_c"} ], [ {start_cmd: "b-server-start", attribute2:"type_a"}, {start_cmd: "b-worker-start", attribute2:"type_b"} ] ] In each iteration, I need to take out the array of maps, then iterate over that array and take out the values of the map. How do I

问题 I created a nested dictionary in Python like this: { "Laptop": { "sony": 1 "apple": 2 "asus": 5 }, "Camera": { "sony": 2 "sumsung": 1 "nikon" : 4 }, } But I couldn't figure out how to write this nested dict into a json file. Any comments will be appreciated..! 回答1: d = { "Laptop": { "sony": 1, "apple": 2, "asus": 5, }, "Camera": { "sony": 2, "sumsung": 1, "nikon" : 4, }, } with open("my.json","w") as f: json.dump(d,f) 来源： https://stackoverflow.com/questions/21560433/how-to-write-a-nested

问题 I am wondering if this is possible. I have a List Table (lstTable) that is on the same form that I am trying to fill in with information from a public structure (ELEM_DATA). I understand nested with statements will work if it is within the same scope but how can I do this with example 2 below: Example 1: With me.lstTable.Items(RECORD) .SubItems(1).text = ELEM_DATA(RECORD).name .SubItems(2).text = ELEM_DATA(RECORD).number end with Example 2: With me.lstTable.Items(RECORD) With ELEM_DATA(RECORD

问题 What I am showing below, is rather a theoretical question. But I am interested in how the new C#7 compiler works and resolves local functions. In C#7 I can use local functions. For example (you can try these examples in LinqPad beta): Example 1: Nested Main() void Main() { void Main() { Console.WriteLine("Hello!"); } Main(); } DotNetFiddle for Example 1 Rather than calling Main() in a recursive way, the local function Main() is being called once, so the output of this is: Hello! The compiler

问题 What I am showing below, is rather a theoretical question. But I am interested in how the new C#7 compiler works and resolves local functions. In C#7 I can use local functions. For example (you can try these examples in LinqPad beta): Example 1: Nested Main() void Main() { void Main() { Console.WriteLine("Hello!"); } Main(); } DotNetFiddle for Example 1 Rather than calling Main() in a recursive way, the local function Main() is being called once, so the output of this is: Hello! The compiler

问题 What I am showing below, is rather a theoretical question. But I am interested in how the new C#7 compiler works and resolves local functions. In C#7 I can use local functions. For example (you can try these examples in LinqPad beta): Example 1: Nested Main() void Main() { void Main() { Console.WriteLine("Hello!"); } Main(); } DotNetFiddle for Example 1 Rather than calling Main() in a recursive way, the local function Main() is being called once, so the output of this is: Hello! The compiler

问题 What I am showing below, is rather a theoretical question. But I am interested in how the new C#7 compiler works and resolves local functions. In C#7 I can use local functions. For example (you can try these examples in LinqPad beta): Example 1: Nested Main() void Main() { void Main() { Console.WriteLine("Hello!"); } Main(); } DotNetFiddle for Example 1 Rather than calling Main() in a recursive way, the local function Main() is being called once, so the output of this is: Hello! The compiler

问题 I have a huge JSON string as a response to a rest call. Part of the response has the following structure. I am using com.fasterxml.jackson “historicalData”: { “1585573790000”: {“score”:23.54, “count”:3}, “1585487390000”: {“score”:12.65, “count”:2} }, //1585573790000 -> being the epoch time The model I thought of so far is ArrayList of private class HistoricalData { Long epochTime; Double score; Longcount; } But I am unable to map the epoch time. 回答1: your class HistoricalData does not match