formatting

问题 I have a simple List in SwiftUI. Code and Screenshot included below. I would like to reduce the height of each row in the list (so less space between lines and text lines closer together). I already tried to add a ".frame(height: 20)" to the HStack but it only allows the line spacing to be increased! Is there a way to do that? Thanks! Gerard import SwiftUI struct PressureData: Identifiable { let id: Int let timeStamp: String let pressureVal: Int } struct ContentView : View { @State var

问题 I am using the standard json module in python 2.6 to serialize a list of floats. However, I'm getting results like this: >>> import json >>> json.dumps([23.67, 23.97, 23.87]) '[23.670000000000002, 23.969999999999999, 23.870000000000001]' I want the floats to be formated with only two decimal digits. The output should look like this: >>> json.dumps([23.67, 23.97, 23.87]) '[23.67, 23.97, 23.87]' I have tried defining my own JSON Encoder class: class MyEncoder(json.JSONEncoder): def encode(self,

问题 Does anyone know how to insert bullets and do some formatting in a textbox, maybe in a webview (as shown in the print screen below) in iOS 5, XCode 4.3? 回答1: For the UITextView manually add dots and newlines, for example: NSArray *items = [NSArray arrayWithObjects:@"Stack",@"Overflow",nil]; NSMutableString *formattedString = [[NSMutableString alloc] init ]; for (NSString *item in items) [formattedString appendFormat:@"\u2022 %@\n", item]; theTextViewName.text = formattedString; For the

问题 I've had success in sending a google docs file into a google sheets and the spreadsheet managed to fill itself in correctly (it formats the text into a table, very neat) Below is an example of how I'm formatting my text: ID, NAME, MOBILE, CITY, COUNTRY, BIRTHDAY, 3, NameGoesHere1, 21 98658 5548, abcity, countryNameHere, 1998-05-02, 6, SomeoneElse Joined Here, 21 98535 1218, whereland, Far far away, 1989-11-15, 5, AnotherCustomer, 21 85482 5245, somecity, Somewhereland, 1999-08-04, ID, PRICE,

问题 I tried doing: str = "" "".join(map(str, items)) but it says str object is not callable. Is this doable using a single line? 回答1: Use string join() method. List: >>> l = ["a", "b", "c"] >>> " ".join(l) 'a b c' >>> Tuple: >>> t = ("a", "b", "c") >>> " ".join(t) 'a b c' >>> Non-string objects: >>> l = [1,2,3] >>> " ".join([str(i) for i in l]) '1 2 3' >>> " ".join(map(str, l)) '1 2 3' >>> 回答2: The problem is map need function as first argument. Your code str = "" "".join(map(str, items)) Make

问题 Here are some outputs: Date.today => Mon, 25 Jun 2012 Date.today.to_formatted_s(:long_ordinal) => "June 25th, 2012" Date.today.strftime('%A %d, %B') => "Monday 25, June" Now I need output in the format ie: Monday 25th, June or Thrusday, 1st, October Problem is to_formatted_s and strftime apply only on date and both or them return string. How can I get the output in the way I need. 回答1: You can use Date::DATE_FORMATS to add a new customized format, and Integer.ordinalize to get the day ordinal

问题 Here are some outputs: Date.today => Mon, 25 Jun 2012 Date.today.to_formatted_s(:long_ordinal) => "June 25th, 2012" Date.today.strftime('%A %d, %B') => "Monday 25, June" Now I need output in the format ie: Monday 25th, June or Thrusday, 1st, October Problem is to_formatted_s and strftime apply only on date and both or them return string. How can I get the output in the way I need. 回答1: You can use Date::DATE_FORMATS to add a new customized format, and Integer.ordinalize to get the day ordinal

问题 In JavaScript, the standard rules for code formatting don't seem to cut it. You still end up with messes of });}); all over the place and I don't believe I even know of established rules for the correct indention of anonymous functions declared as arguments to other functions. In short, I have trouble reading my own JavaScript, and I bet I'm not alone. I think the idea that I am coming around to is to just not define functions within other functions. Write every function with a name and as a

问题 I want to parse a timestamp in the form of yyyy-MM-dd'T'HH:mm:ss as LocalDateTime . When doing so, it strips the seconds if they are 00 . As described here, I need to use a custom formatter LocalDateTime date = LocalDateTime.parse("2008-10-02T12:30:00"); DateTimeFormatter f = DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss"); String dateString = date.toString(); String dateFormatted = date.format(f); System.out.println(dateString); // 2008-10-02T12:30 This one works, but it returns a

问题 I'm trying to transform this xml. However I'm having formatting issues. Could someone please guide me to solve this problem. Thanks in advance <?xml version="1.0" encoding="windows-1252"?> <XML> <Attributes> <Attribute> <id>5</id> <Name>Buyer ID</Name> <Type>common</Type> <Value>Lee</Value> </Attribute> <Attribute> <id>331</id> <Name>Enviornment</Name> <Type>common</Type> <Value>Development</Value> </Attribute> <Attribute> <id>79</id> <Name>Retail</Name> <Type>common</Type> <Value></Value> <