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make changes to the resource without affecting the state of the resource . A GET request is typically appended to a URL in the form of a query string. If the data is an English letter/number, it is sent as is, if it is a space, converted to +, if it is Chinese/other characters, the string is directly encrypted with BASE64, such as:%E4%BD%A0%E5%A5%BD, where xx in%xx is the symbol in 16 binary notation ASCII. Therefore, there is a certain security risk There is a size limit to the data submi

malloc () Request memory, free () frees memory, because memcached based on memory data management, usually its cache data is relatively large, so it will cause memcached frequently to Linux (Kernel) to initiate applications, Release of the request, while the performance of the Linux malloc () and free () is inefficient, in order to solve this problem, memached based on the slab allocator mechanism to request and release the data.On the mechanism of slab allocator, memcached apply for a Memory p

induction:Inductive basis: When I=1, there is 2i-1=20=1. Because there is only one root node on the 1th floor, the proposition is set up.Inductive hypothesis: Assuming that all J (1≤jInductive steps: According to the inductive hypothesis, there are at most 2i-2 nodes on the i-1 layer. Since there are at most two children per node of a binary tree, the number of nodes on layer I is at most twice times the maximum number of nodes on the i-1 layer. That is, when j=i, there are at most 2x2i-2=2i-1

process, or you can hang yourself, or someone else, A0. process_xmub.blocked. Thread number = 0; Shielding, only the Wait () method is implemented, otherwise extinguished, no longer participate in scheduling. A thread can call the Wait () method from any state to enter the exit state, and the thread will not exist until the message wakes up if it waits to exit.Thread_run_wt_bic () {///BIC runs the bitmap during the dispatch cycle. 23W, time-consuming approx.: 22.55usR2 = A0. Process_xmub;r0l =

group, or a single Web site, then choose new → application pool (from file), or "new" → "Site" → "From File", or "new" → "virtual directory (from file)", you can create a new application pool from the saved configuration file, Web site or virtual directory. Therefore, when necessary, we can only create and configure an object, using the "Save configuration to a file" feature to export objectsconfiguration information, and then use the "new" → "virtual directory (from files)" feature to import t

Although this forum has some similar articles, but this article also has its own unique, is worth seeing If your computer is newly installed nt4/win2000, it is not meant to be used directly as an Internet server. Although Microsoft's patch has hit a lot, there are still holes. Now let's talk a little bit about how to use IIS to build a server with high security performance. First, based on the Windows NT security mechanism 1 NT dozen SP6 patches, 2K d

market, screen resolution can reach 3K, 4K level, for these more than 1080P resolution notebook, there will be some deficiencies, such as the resolution is too high, the notebook card has more stringent requirements, In addition to the more power consumption, the most important point is that the current Windows system dpi scaling is not in place, especially for small devices with 3K and 4K of this level resolution screen, with 200% to 250% dpi scaling, desktop icons will have a basic fuzzy situ

. Copylock,windows 9x/2k, freeware, "is a small programs that allows the replacement of one or many files, are (e.g. the system files like Comctl32.dll.) " Replacer,windows 2k/xp, free software, "is a easy to use System file exchanger for XP/2K. It uses a drag and drop interface to obtain input. " Other: Resthief, freeware, when you drag an executable or other bi

Reference article: [1]an alternative approach to linearly Constrained adaptive.1982 beamforming Adaptive beamforming algorithm model with linear constraints For the output of the M channel is XM (k) x_m (k), the output of the M channel is ideally: XM (k) =s (k) +nm (k). X_m (k) = S (k) + N_m (k).Wherein, is S (k) s (k) is the desired signal, NM (k) N_m (k) represents the noise and interference of the first m microphone. the beam-formed signal y (k) y (k) is summed by the weighted delay of XM (k)

(normal Distribution/gaussian distribution).If the random variable x obeys a mathematical expectation of μ, the standard deviation is σ^2 Gaussian distribution, then:X~n (μ,σ^2)The probability density function is:F (x) =1/(√2πσ) e^ (-〖 (x-u) 〗^2/(2σ^2))Gauss's use in WEBRTC:F (X_k | Z,r_k) =1/√2πe^ (-(X_k-u_z) ^2/(2σ^2))X_k is the selected eigenvector, WebRTC middle finger x_k is the energy of six sub-band (the sub-band is 80~250hz,250~500hz,500hz~1k, 1~2k