string-formatting

问题 Is it possible to use the comma as a decimal separator in sprintf in en_CA locale? 回答1: sprintf is locale aware and will always use the current locale settings but you can use number_format for this. 来源： https://stackoverflow.com/questions/12696163/comma-as-a-decimal-separator-in-sprintf-in-en-ca-locale

问题 What is the use of * in .format(*) ? When using it in the format function below print(new_string.format(*sum_string)) it changes the value of sum_string in the output from 18 to 1 Why does that happen? I have read the following link about *args and **kwargs but couldn't understand how does that apply to the .format() function What does ** (double star/asterisk) and * (star/asterisk) do for parameters? sum_string = "18" new_string = "This is a new string of value {}" print(new_string.format

问题 This question already has answers here : PowerShell hex to string conversion (7 answers) Closed 2 years ago . I have a series of hex values which looks like this: 68 65 6c 6c 6f 57 6f 72 6c 64 7c 31 2f 30 38 31 35 7c 41 42 43 2d 31 35 02 08 I now need to convert this hex value to ASCII so that the result looks like: helloWorld|1/0815|ABC-15 I tried so many things but I never came to the final code. I tried to use the convert-function in every imaginable way without any success. At the moment

问题 I'm working on an application that uses an custom, platform-dependent logger. The application defines some printf-style macros: #define LOG_DEBUG(format, ...) \ logger.log(DEBUG, __FUNCTION__, format, ##__VA_ARGS__) ... The past few days I've been working on moving the application to use boost.log . The biggest problem I'm having is trying to retain this macro format so that only the logger internals need to be changed, since boost's logging API is implemented in iostream-style, i.e. BOOST

问题 I have a collection of characters (',', '.', '/', '-', ' ') then I have a collection of strings (about 500). What I want to do as fast as possible is: after each of the characters I want to make the next letter uppercase. I want the first capitalized as well and many of the strings are all uppercase to begin with. EDIT: I modified tdragons answer to this final result: public static String CapitalizeAndStuff(string startingString) { startingString = startingString.ToLower(); char[] chars = new

问题 I need to accum some data based on whether or not an SSN number appears in the data. I have it in a string, what I need to do is search for a numeric pattern within the string such as: ###-##-#### I looked into regex a bit, but I don't have much time to read deep into it (my company needs the program this week) and it seems too complex to grasp in such a short time. What I've came across so far is: If (rec.address1 Like "###-##-####") but I don't know if this will filter it out of the string

问题 I have the following columns in a gridview, one is a date and the other one is a dollar amount. I applied the formatting and set the HtmlEncode property to false, however the values still come up unformatted: <asp:BoundField DataField="Total" HeaderText="Total" ReadOnly="true" HtmlEncode="False" DataFormatString="{0:C}" /> <asp:BoundField DataField="Sale_Date" HeaderText="Sale Date" ReadOnly="true" HtmlEncode="False" DataFormatString = "{0:d}" /> This is how these values appear in the

问题 This question already has answers here : How can I print literal curly-brace characters in python string and also use .format on it? (12 answers) Closed last year . I have the following HTML template in a Python variable: template = """ <script> function work() { alert('bla'); } </script> Success rate is {value:.2%} percent. """ I want to substitute {value:.2%} with some decimal number with the appropriate formatting. Since my template may contain a lot of JavaScript code, I want to avoid

问题 Pretty-printing this map comes out pretty ugly: {:type :move, :name :boost, :from {:nodeid :plus, :name :left-operand, :value {:args [:result :right-operand], :f #object[fargish.workspace_test$fn__159675$fn__159678 0xb3f518f "fargish.workspace_test$fn__159675$fn__159678@b3f518f"]}, :dockclass :input, :ref [:plus :left-operand]}, :to {:nodeid :source11, :name :output, :value 11, :dockclass :output, :ref [:source11 :output]}, :do #object[fargish.workspace$do_boost 0x179d226e "fargish.workspace

问题 I want to convert a double to string with fixed width. If the width is 10, then I want the double value to get round off to this width. For example, if value = 102.121323435345 and width is 10, then this value should be, position==> 0123456789 value = 102.121323 I can achieve this with snprintf, but I am looking for a c++ native code to do the same. char buf[125]; snprint(buf, width, "%.6f", value); I tried to use the below, but it does not help me much, std::ostringstream oss; oss &lt&lt std