startswith

问题 I was fiddling around with parsing in C# and found that for every string I tried, string.StartsWith("\u2D2D") will return true. Why is that? It seems it works with every char. Tried this code with .Net 4.5 the Debugger did not break. for (char i = char.MinValue; i < char.MaxValue; i++) { if(!i.ToString().StartsWith("\u2d2d")) { Debugger.Break(); } } 回答1: I think I'll have a try. From what I get, is that U+2D2D was added in Unicode v6.1 (source / source). The .NET framework, or the native

问题 I was fiddling around with parsing in C# and found that for every string I tried, string.StartsWith("\u2D2D") will return true. Why is that? It seems it works with every char. Tried this code with .Net 4.5 the Debugger did not break. for (char i = char.MinValue; i < char.MaxValue; i++) { if(!i.ToString().StartsWith("\u2d2d")) { Debugger.Break(); } } 回答1: I think I'll have a try. From what I get, is that U+2D2D was added in Unicode v6.1 (source / source). The .NET framework, or the native

问题 Is there something like startsWith(str_a, str_b) in the standard C library? It should take pointers to two strings that end with nullbytes, and tell me whether the first one also appears completely at the beginning of the second one. Examples: "abc", "abcdef" -> true "abcdef", "abc" -> false "abd", "abdcef" -> true "abc", "abc" -> true 回答1: Apparently there's no standard C function for this. So: bool startsWith(const char *pre, const char *str) { size_t lenpre = strlen(pre), lenstr = strlen

问题 Now the question is pretty hard. I have a linq queries like the way below var lstSimilars = from similarWords in lstAllWords where similarWords.StartsWith(srWordLocal) select similarWords; foreach (string srVar in lstSimilars) { string srTempWord = srVar.Replace(srWordLocal, ""); if (dtWords.ContainsKey(srTempWord) == true) { csWords.updateSplitWord(srWordLocal + ";" + srTempWord, dtWords[srVar]); } } lstSimilars = from similarWords in lstAllWords where similarWords.EndsWith(srWordLocal)

问题 Im currently using a script in MarsEdit.app which has a flaw. It checks the HTML document for cases where paragraphs are wrapped with <p> tags as follows: -- If already starts with <p>, don't prepend another one if not {oneParagraph starts with "<p>"} then set newBodyText to newBodyText & "<p>" end if set newBodyText to newBodyText & oneParagraph The problem here is that if the paragraph (or single line) is wrapped with any other HTML tag other than a <p> tag the script wraps <p> tags across

问题 I'd like to loop over a string list, and find out if the items from this list start with one of the item from another list. So I have something like: List<string> firstList = new List<string>(); firstList.Add("txt random"); firstList.Add("text ok"); List<string> keyWords = new List<string>(); keyWords.Add("txt"); keyWords.Add("Text"); 回答1: You can do that using a couple simple for each loops. foreach (var t in firstList) { foreach (var u in keyWords) { if (t.StartsWith(u) { // Do something

问题 Is there a way to check (in applescript) if a list (or block of html text) starts with any number of values. Example (checking for a single value) if {foobar starts with "<p>"} then -- do something awesome here end if except i would like to pass multiple values to check <p> or <h1> or <em> . Thanks in advance. 回答1: on startswith(txt, l) repeat with v in l if txt starts with v then return true end repeat false end startswith startswith("abc", {"a", "d", "e"}) -- true 回答2: If you want to stay

问题 I have two dataframes that I read in via csv. Dataframe one consists of a phone number and some additional data. The second dataframe contains country codes and country names. I want to take the phone number from the first dataset and compare it to the country codes of the second. Country codes can between one to four digits long. I go from the longest country code to the shortest. If there is a match, I want to assign the country name to the phone number. Input longlist: phonenumber, add

问题 I'm getting an error, see below, when I try to generate a list of the class MappedItem. In short the code example below tries to find products by category, date range and SKU. The requirement I have is that the user should be able to enter a comma separated list of SKUs and the search is to find any product whos SKU starts with one of the SKUs entered by the user. When I run the code, I get. Local sequence cannot be used in LINQ to SQL implementation of query operators except the Contains()

问题 I have a dictionary whose keys come in sets that share the same prefix, like this: d = { "key1":"valA", "key123":"valB", "key1XY":"valC", "key2":"valD", "key2-22":"valE" } Given a query string, I need to look up all the values associated with keys that start with that prefix, e.g. for query="key1" I need to get ["valA", "valB", "valC"] My implementation below works but is too slow for a large number of queries since the dictionary d has about 30,000 keys and most of the keys are more than 20