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问题 I enabled the download settings for files with WebView. I'm saving files with DownloadManager. But the files do not appear in the local downloads directory. The files I've downloaded are save here. > file/storage/emulated/0/Android/data/com.myapp/files/x.mp3 I've tried a lot. But somehow it was not downloaded in the local downloads folder. What should I do? My Code String string = String.valueOf((URLUtil.guessFileName(url, contentDisposition, mimeType))); DownloadManager.Request request = new

问题 I have searched several questions around this topic but have not found and answer that made my code work. I'm a beginner so any help is much appreciated. I'm using the jupyter notebook and have the following code: import pandas a = pandas.read_csv("internal_html.csv") a.dropna(axis="columns", how="any") a.head(10) I get no error when running the code, but the columns with NaN values still show up. Thanks! 回答1: You need to reassign the dropna statement back to a. a = a.dropna(axis="columns",

问题 When tokenizing a string of text, I need to extract the indexes of the tokenized words. For example, given: "Mary didn't kiss John" I would need something like: [(Mary, 0), (did, 5), (n't, 8), (kiss, 12), (John, 17)] Where 0, 5, 8, 12 and 17 correspond to the index (in the original string) where the token began. I cannot rely on just whitespace, since some words become 2 tokens. Further, I cannot just search for the token in the string, since the word likely will appear multiple times. One

问题 Could someone help me set command to set channel for specific server so that it does not interfere with each other? Actually I have this: var testChannel = bot.channels.find(channel => channel.id === "hereMyChannelID"); I want to set command which Owner can use to set channel id for his server. 回答1: You can accomplish this task by creating a JSON file to hold the specified channels of each guild. Then, in your command, simply define the channel in the JSON. After that, anywhere else in your

问题 Look this code: class MyClass_1(): @staticmethod def method_1(func): return func(1, 2, 3) class MyClass_2(): my_func = lambda a,b,c : a*b*c # I need to call this method def method_2(self): result = MyClass_1.method_1(self.my_func) print(result) My error: TypeError: () takes 3 positional arguments but 4 were given I need to call the lambda function my_func in the same way as the code above, but a self is appearing from somewhere I don't know and causing this error. What am I missing? 回答1:

问题 Hi I have question about HTML form array and PHP. For example I have name and email but ask 6 times and I want to send this mail. What I should edit to work? thank you! HTML: <form method="Post" action="send.php" onSubmit="return validate();"> <?php $amount=6; //amount shows the number of data I want to repeat for( $i = 0; $i < $amount; $i++ ) { ?> <b>Data <?php echo $i+1 ?>º</b> <input type="edit" name="Name[]" size="40"> <input type="edit" name="email[]" size="40"> <br> <?php } ?> <input

问题 I am using the standard OIDC .NET library to make a challenge request to ADB2C. From my understanding, this automagically attempts the sign in with the refresh token in cache and gains an authorization without re-asking for credentials. This seems to work absolutely fine, except on 1 browser - Chrome on Android. No matter what I try, this browser seems to to lose the refresh token, so after around 1 hr, it starts asking for credentials again. I have cross checked this on Chrome web/mac, edge,

问题 I am trying to validate Jaxb objects against an xsd by marshalling them. This was working fine in weblogic11 but after migration to weblogic12c it isn't working. For example, even if the mandatory tags are missing, there is no error and xml is being formed successfully! I noticed event.getLinkedException() is returning null. ValidateXml.java import java.io.File; import java.io.StringWriter; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map;

问题 I've encountered a problem when validating a single-char scanf input in C and I cannot find an existing solution that works... The scenario is: a method is taking a single letter 'char' type input and then validating this input, if the criteria is not met, then pops an error message and re-enter, otherwise return this character value. my code is: char GetStuff(void) { char c; scanf("%c", &c); while(c != 'A' || c != 'P') { printf("invalid input, enter again (A for AM or P for PM): "); scanf ("

问题 I'm wondering if there's a way to retrieve all the active items names via the Steam API ? I know you can check the prices per item, but is there a way to fetch every items names ? Thanks 回答1: I believe, now you have got an answer how to continue your journey =) anyway when I have developed different small sites/modules for steam, I found these API:s very handy below: CSGO-Market (NPMJS) CSGO-Stats Steamspy CSGO-Backpack Bitskins I hope this will help you! have a nice day Regards Daniel 来源：