string

问题 I already know r"string" in Python 2.7 often used for regex patterns. I also have seen u"string" for, I think, Unicode strings. Now with Python 3 we see b"string" . I have searched for these in different sources / questions, such as What does a b prefix before a python string mean?, but it's difficult to see the big picture of all these strings with prefixes in Python, especially with Python 2 vs 3. Question: would you have a rule of thumb to remember the different types of strings with

问题 I am trying to understand how the python module fuzzywuzzy's function process.extract() work? I mainly read about the fuzzywuzzy package here: http://chairnerd.seatgeek.com/fuzzywuzzy-fuzzy-string-matching-in-python/, which is a great post explanining different scenarios when trying to do fuzzy matching. They discussed several scenarios for Partial String Similarity: 1) Out Of Order 2) Token Sort 3) Token Set And then, from this post: https://pathindependence.wordpress.com/2015/10/31/tutorial

问题 This question already has an answer here : Ignore escaped double quote characters swift (1 answer) Closed 4 years ago . I define a string with: static let Regex_studio_tel = "^(0[0-9]{2,3}\-)?([2-9][0-9]{6,7})+(\-[0-9]{1,4})?$" But there comes an issue: Invalid escape sequence in literal The picture I token: Edit -1 My requirement is match special plane numbers use Regex, such as: My company have a special plane number： 028-65636688 or 85317778-8007 // aaa-bbbbbbbb-ccc we know the aaa is the

问题 Is it efficient to compare a string with another string or string literal like this? string a; string b; if (a == "test") or if (a == b) My coworker asked me to use memcmp Any comments about this? Thanks. 回答1: Yes use a == b , do not listen to your co-worker. You should always prefer code readability and using STL over using C functions unless you have a specific bottleneck in your program that you need to optimize and you have proven that it is truly a bottleneck. 回答2: Obviously you should

问题 If I generate a message digest (for a security feature in my app) using this Java code: java.security.MessageDigest saltDigest = MessageDigest.getInstance("SHA-256"); saltDigest.update(UUID.randomUUID().toString().getBytes("UTF-8")); String digest = String.valueOf(Hex.encode(saltDigest.digest())); I end up with a really long string like the following: 29bcf49cbd57bbc41e601b399a93218ef99c6e36bae3598b5a5a64ac66d9c254 Not the nicest thing to pass on a URL! Is there a way to shorten this? 回答1:

问题 What’s the equivalent to String.localizedStringWithFormat(_:_:) in SwiftUI? I know LocalizedStringKey.init(:) can make use of string interpolation, but as I understand it this requires localizable string keys to be parameterized in the .strings/.stringsdict files. This is different to how localized string keys are currently defined in the app I'm working on. Given these localizable strings in Localizable.strings: "HELLO_WORLD" = "Hello, world!"; "HELLO_WORLD_PARAMETERIZED" = "Hello, %@!";

问题 I'm very new to HTTP commands and the libcurl library. I know how to get the HTTP response code but not the HTTP response string. Following is the code snippet that I wrote to get the response code. Any help on how to get the response string will be highly appreciated!!! curl_easy_setopt(curl, CURLOPT_URL, url.c_str()); CURLcode ret = curl_easy_perform(curl); if (ret != CURLE_OK) { LOG(INFO) << "Failed to perform the request. " << "Return code: " << ret; return false; } std::unique_ptr<int64

问题 How can I add text to a JTextArea instead of replacing all of it? I know about setText(String) but other than that I'm a bit lost. 回答1: You can use the append method like this: textArea.append(additionalText); 回答2: To insert string at any position you can use the component's Document. public static void main(String[] args) throws BadLocationException { JTextField f = new JTextField("foo bar"); int offset = 7; String str = " baz"; f.getDocument().insertString(offset, str, SimpleAttributeSet

问题 How can I add text to a JTextArea instead of replacing all of it? I know about setText(String) but other than that I'm a bit lost. 回答1: You can use the append method like this: textArea.append(additionalText); 回答2: To insert string at any position you can use the component's Document. public static void main(String[] args) throws BadLocationException { JTextField f = new JTextField("foo bar"); int offset = 7; String str = " baz"; f.getDocument().insertString(offset, str, SimpleAttributeSet

问题 I'm wondering what's the difference between char s[] = "hello" and char *s = "hello" . After reading this and this, I'm still not very clear on this question. As I know, there are five data segments in memory, Text, BSS, Data, Stack and Heap. From my understanding, in case of char s[] = "hello" : "hello" is in Text. s is in Data if it is a global variable or in Stack if it is a local variable. We also have a copy of "hello" where the s is stored, so we can modify the value of this string via