These days I have encountered a huge pit. The time of data storage is 2 o ‘clock, but the time displayed on the front page is 16 o ‘clock, which is 14 hours short.
Describe the project background, the service is in the US, the project is a Mexican project, the database time and server time have been set to the Mexican time zone, but it is still not correct.
I have asked the project boss in the middle, and the boss gave me the opinion that the time zone was set on the URL of connecting data, but the front-end page was still not displayed correctly.
After several times of locating, the time to find it directly in the dev location will change. This is because the computer’s time zone is the Chinese time zone. But the time log is still on the server, the log time is correct. So guess the front-end is the time zone problem.
Because the last segment passes the timestamp, the timestamp has no time zone. So the front end also needs to change the time zone to correspond
id : "crete_time",
renderer : function(idValue,value,record){
return value ?moment(value).tz("America/Guatemala").format("YYYY-MM-DD HH:mm:ss") : "---";
}
You can set the time zone using the Moment.tz method
compiler error message: CS1010: constants of line breaks the source error:
Solutions:
Method 1: Open the corresponding template that will prompt “inconsistent line end “, select” Yes “, save → generate
Method 2: When you have written the template, press the formatting code shortcut key Ctrl+K+D
Compiler error message: CS1056: Handling of unexpected characters
error generated:
An “unexpected character” error occurred in C# code while compiling an ASP. NET 4.0 website using VS2010.
does not use UTF-8 format for display and save, the compiler can not correctly recognize such characters, resulting in compilation error.
:
set the file open mode of VS 2010, make it in view of the error file using utf-8 format to open. The specific operation is as follows:
1) In Solution Explorer, select the file you want to open
2) Right mouse button pops up the menu, select “Open mode”, and use “Charp editor with encoding function” to open it. As shown in the figure below:
Instead, select the following in the code: then rebuild the solution, error elimination.
Error generation: always returns an error when compiling a pre-existing program code using VS2015. strange In some added to the end of the class file some [] [] [] [], prompt Unexpected character, ‘application error.
A compilation error as shown in the title was caused by a special full-corner character in C# code. > special full-corner characters are not displayed and saved in UTF-8 format, and the compiler cannot correctly recognize such characters, resulting in compilation errors.
solution: set the file open mode of VS 2015, make it contains a file with the Angle of all special characters use utf-8 format to open. >
1) In Solution Explorer, select the file that needs special opening. 2) Right-click the mouse button to pop up the menu, select “Open Mode”, and use “Charp Editor with Encoding” to open.
Use the vue – cli create project has the following error: the command failed: NPM install – loglevel error – registry=https://registry.npm.taobao.org – disturl=https://npm.taobao.org/dist the solution has the following kinds: Make sure that the vue-cli, NPM, node, Versions had better high node must be 1. 8 + NPM install chromedriver – chromedriver_cdnurl=http://cdn.npm.taobao.org/dist/chromedriver finished to recreate the project (this approach is not once and for all) 2. NPM cache clean — force Clear the NPM cache (if it doesn’t work, it’s not a cache problem) 3. If the above two steps or not To install the following taobao source NPM install – g CNPM – registry=https://registry.npm.taobao.org
4. Find your computer C: \ Users \ Administrator found. vuerc the file initial is true instead of false can
This is a low-level error in Vue development that can be encountered but is shared here so that it can be resolved if encountered
To explain the development environment in which this problem occurs: native Mac + NVM-managed node uses Node V8.0.0 to install vue-cli globally: NPM install vue-cli-g
Error analysis
This problem is actually relatively simple. The intuitive error is that an exception is thrown on line 313 of rimraf.js. Exploring the cause of this problem requires understanding the role of rimraf.js. It uses the rm -rf command of Unix for deep package deletions. RM-RF is required to operate the corresponding permissions.
Error resolution
Run the vue command with sudo
sudo vue init webpack
Although the solution to this problem is very simple but I believe that many people will encounter, the use of Windows system, of course, will not appear the problem of authority.
Recently ready to develop an H5 sharing service, found the new version of Vue CLI4.0 is a lot of pit
First: My local @vue CLI version is 4.5.11:
Later, due to the tight schedule of the project, I directly reduced the local CLI version to 3.0, but because of my mistake, I made a mistake when creating the Vue project, but don’t worry:
Just find the local user directory C disk to find a.vuerc file deleted on the OK
The article directories
Problem description idea specific implementation front end back end
Problem description
If is request http://www.example.com/image1.png picture originally, now ask for pictures, https://www.petal.social/image/www.example.com/image1.png you will need to do an image proxy (request pictures to our own when the server request, then our HTTP server request images, the result of the HTTP in the way back to the web site of the HTTPS)
Train of thought
First, add an API locally for the front-end request that returns the modified image URL
The specific implementation
The front end
Original version:
Windows batch files run in the background and require a piece of code to be added to the header.
@echo off
if "%1" == "h" goto begin
mshta vbscript:createobject("wscript.shell").run("%~nx0 h",0)(window.close)&&exit
:begin
::here are your codes below
When the page is refreshed, the VUE instance is reloaded, and the store will be reset. The store can be stored in the local localStorage, sessionStorage and cookie before the definition is refreshed. The localStorage is permanent storage, and the page data that was opened last time will be read when the page is reopened. According to my needs, the most appropriate is sessionStorage.
before upload fires when the page is refreshed. You can listen to this method to store the page to sessionStorage before the page is refreshed. Even when page refresh
of course, read the sessionStorage data into the store, read and stored, are written in the app. Vue.
export default {
name: 'app',
created () {
// Read sessionStorage on page load
if (sessionStorage.getItem('store')) {
this.$store.replaceState(Object.assign({}, this.$store.state, JSON.parse(sessionStorage.getItem('store'))))
}
// Save the store to sessionStorage when the page is refreshed
window.addEventListener('beforeunload', () => {
sessionStorage.setItem('store', JSON.stringify(this.$store.state))
})
}
}
Pytorch build convolution layer generally use nn. Conv2d method, in some cases we need custom convolution kernels weight weight, and nn. Conv2d custom is not allowed in the convolution parameters, can use the torch at this time. The nn. Functional. Conv2d referred to as “f. onv2d
F.onv2d can and must be required to input the convolution weight and bias bias. Therefore, build the desired convolution kernel parameters, and then input F.conv2d. Here is an example of using f.conv2d to build the convolution layer, where a class is needed for the network model:
class CNN(nn.Module):
def __init__(self):
super(CNN, self).__init__()
self.weight = nn.Parameter(torch.randn(16, 1, 5, 5)) # Customized weights
self.bias = nn.Parameter(torch.randn(16)) # Customized bias
def forward(self, x):
x = x.view(x.size(0), -1)
out = F.conv2d(x, self.weight, self.bias, stride=1, padding=0)
return out
It is worth noting that the data type of weights to be trained for each layer in the PyTorch is set to nn.parameter rather than Tensor or Variable. Parameter’s require_grad defaults to true, and Varaible defaults to False.
vuerc the file 
