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问题 I can wget e.g. python coverage and pip install the package locally quickly and without any problem, but pip install coverage takes forever . Using pip 1.3.1 in a virtual env on Ubuntu 12.04. Any idea what could be the hold-up? 回答1: As Donald Stufft answered in pip issue 864, it happens because pip crawls a lot of pages looking for package sdists, and this behavior was inherited from easy_install . Some packages do not work if you remove that feature, and some guys started a new PEP to remove

问题 I can wget e.g. python coverage and pip install the package locally quickly and without any problem, but pip install coverage takes forever . Using pip 1.3.1 in a virtual env on Ubuntu 12.04. Any idea what could be the hold-up? 回答1: As Donald Stufft answered in pip issue 864, it happens because pip crawls a lot of pages looking for package sdists, and this behavior was inherited from easy_install . Some packages do not work if you remove that feature, and some guys started a new PEP to remove

问题 I can wget e.g. python coverage and pip install the package locally quickly and without any problem, but pip install coverage takes forever . Using pip 1.3.1 in a virtual env on Ubuntu 12.04. Any idea what could be the hold-up? 回答1: As Donald Stufft answered in pip issue 864, it happens because pip crawls a lot of pages looking for package sdists, and this behavior was inherited from easy_install . Some packages do not work if you remove that feature, and some guys started a new PEP to remove

问题 my code: $zip_name="download.zip"; $ctype="application/zip"; // required for IE, otherwise Content-disposition is ignored if(ini_get('zlib.output_compression')) ini_set('zlib.output_compression', 'Off'); header("Pragma: public"); // required header("Expires: 0"); header("Cache-Control: must-revalidate, post-check=0, pre-check=0"); header("Cache-Control: private",false); // required for certain browsers header("Content-Type: $ctype"); // change, added quotes to allow spaces in filenames header

问题 my code: $zip_name="download.zip"; $ctype="application/zip"; // required for IE, otherwise Content-disposition is ignored if(ini_get('zlib.output_compression')) ini_set('zlib.output_compression', 'Off'); header("Pragma: public"); // required header("Expires: 0"); header("Cache-Control: must-revalidate, post-check=0, pre-check=0"); header("Cache-Control: private",false); // required for certain browsers header("Content-Type: $ctype"); // change, added quotes to allow spaces in filenames header

问题 I've been trying to create an app that reads a TXT file from downloads internal storage and puts it into an ArrayList and writes an excel sheet to downloads internal storage from in android but android 10 isn't allowing me to read or write a file. I have already used Environment.getExternalStorageDirectory() but it keeps getting deprecated. Do you guys have any tips or know anyways out of this. 回答1: use context.getExternalFilesDir() or context.getExternalCacheDir() ,these also work in 10. See

问题 I've been trying to create an app that reads a TXT file from downloads internal storage and puts it into an ArrayList and writes an excel sheet to downloads internal storage from in android but android 10 isn't allowing me to read or write a file. I have already used Environment.getExternalStorageDirectory() but it keeps getting deprecated. Do you guys have any tips or know anyways out of this. 回答1: use context.getExternalFilesDir() or context.getExternalCacheDir() ,these also work in 10. See

问题 I have a script for generate a .csv file and then download, but I need the dialog "Save as" for the user because I want a fast replace of the old file. An easy example, I download the file "myFile.csv", then edit the data and download again for the refresh, but I need to REPLACE the file, and the browser download it as "myFile (1).csv", so I need to change the name. The point here, time is crucial. I want the dialog "Save as" for the force as the same name and replace it. A MWE: <?php header(

问题 Why do i always get this error FileNotFoundException Permission Denied? The code is going smooth but when i click a file to download, it wont be downloaded. Please help me. im new to this Here is my logcat 03-28 09:19:34.695: E/log_tag(17921): eer java.io.FileNotFoundException: /mnt/sdcard/Excel.xlsx (Permission denied) In my manifest <uses-sdk android:minSdkVersion="11" android:targetSdkVersion="15" android:maxSdkVersion="16" /> <uses-permission android:name="android.permission.INTERNET" />

问题 I'm trying to write this xlsx file in the Download directory of a Samsung Galaxy Tab A 2019 (Android 9.0). If I try to do this on my emulator (Google Pixel C with android 9.0) it works without any problems and I can see the file. If I give the app to my client it gives an error, catches by up by this function: try { importIntoExcel(); DynamicToast.makeSuccess(UserList.this, "Saved!", 2000).show(); b1.setEnabled(true); } catch (IOException e) { DynamicToast.makeError(UserList.this, "Error!",