first of all, I found a lot of database design on Baidu, it can be said that there are different opinions! I see an intermediate table is designed like this, commodity ID sku attributes, unit price inventory, see that the intermediate attributes store js...
H5 video can be played normally on Android, but the page keeps refreshing on ios and the video cannot be played. Video format is mp4 ...
there is a problem at present. To get all the id in a multidimensional array, the dimension of the array is uncertain. Although there are at most five layers, the loop is too bloated to write, and the recursive algorithm is not very familiar with . var ...
I log in with ubuntu, and I don t have the permission to modify files in some directories, so I can t modify some configuration files, but I can t log in with root. Find a solution ...
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1. Online projects use nginx load balancer. When using Wechat to scan the code for order payment, there is a certain chance that the jump will fail. now we can basically determine that there is a problem with the configuration of a server . 2. The err...