這是華為內部的優秀C項目，供大家學習參考。 body {background: #383838 !important;}::-webkit-scrollbar{height:10px !important; width:10px !important; overflow:visible !important;}::-webkit-scrollbar-button{height:0 !important; width:0 !important; display:none !important;}::-webkit-scrollbar-track{box-shadow:none !important;}::-webkit-scrollbar-track:hover{background-color:rgba(56, 56, 56, 0.03) !important; box-shadow:inset 1px 1px 0 rgba(56, 56, 56, 0.1), inset -1px -1px 0rgba(56, 56, 56, 0.1) !important;}::-webkit-scrollbar-track:active{background-color:rgba(56, 56, 56, 0.04) !important; box-shadow:inset 1px 1px 0 rgba(56, 56, 56, 0.14), inset -1px -1px 0 rgba(56, 56, 56, 0.14) !important;}::-webkit-scrollbar-thumb{background-clip:padding-box !important; background-color:rgba(56, 56, 56, 0.2) !important;}::-webkit-scrollbar-thumb:vertical{min-height:28px !important; box-shadow:inset 1px 1px 0 rgba(56, 56, 56, 0.1), inset -1px -1px 0 rgba(56, 56, 56, 0.1) !important;}::-webkit-scrollbar-thumb:horizontal{min-width:28px !important; box-shadow:inset 1px 1px 0 rgba(56, 56, 56, 0.1), inset -1px -1px 0 rgba(56, 56, 56, 0.1) !important;}::-webkit-scrollbar-thumb:hover{background-color:rgba(56, 56, 56, 0.6) !important; box-shadow:inset 1px 1px 1px rgba(56, 56, 56, 0.25), inset -1px -1px 1px rgba(56, 56, 56, 0.25) !important;}::-webkit-scrollbar-thumb:active{background-color:rgba(56, 56, 56, 0.7) !important; box-shadow:inset 1px 1px 3px rgba(56, 56, 56, 0.35), inset -1px -1px 3px rgba(56, 56, 56, 0.35) !important;}::-webkit-scrollbar-corner{background:trnasparent !important;}html::-webkit-scrollbar,body::-webkit-scrollbar{background: rgba(56, 56, 56, 0.5) !important;}body * {background-color: rgba(56, 56, 56, 0.44) !important;}* {color: #B6AA7B !important;}a:link,a:link *,a:link:hover,a:link:hover *,a:link:active,a:link:active * {color: #B6AA7B !important;}a:visited,a:visited *,a:visited:hover,a:visited:hover *,a:visited:active,a:visited:active * {color: #D9C077 !important;}#_maxthon_night_mode_mask{position:fixed !important; left:0 !important; right:0 !important; top:0 !important; Bottom:0 !important;z-index:100 !important; opacity:0.22 !important; background:#383838 !important; pointer-events:none !important;}
標簽： C 代碼
上傳時間： 2015-12-13
上傳用戶：qq253363112
C語言接口與實現，一本過于學術的書 body {background: #383838 !important;}::-webkit-scrollbar{height:10px !important; width:10px !important; overflow:visible !important;}::-webkit-scrollbar-button{height:0 !important; width:0 !important; display:none !important;}::-webkit-scrollbar-track{box-shadow:none !important;}::-webkit-scrollbar-track:hover{background-color:rgba(56, 56, 56, 0.03) !important; box-shadow:inset 1px 1px 0 rgba(56, 56, 56, 0.1), inset -1px -1px 0rgba(56, 56, 56, 0.1) !important;}::-webkit-scrollbar-track:active{background-color:rgba(56, 56, 56, 0.04) !important; box-shadow:inset 1px 1px 0 rgba(56, 56, 56, 0.14), inset -1px -1px 0 rgba(56, 56, 56, 0.14) !important;}::-webkit-scrollbar-thumb{background-clip:padding-box !important; background-color:rgba(56, 56, 56, 0.2) !important;}::-webkit-scrollbar-thumb:vertical{min-height:28px !important; box-shadow:inset 1px 1px 0 rgba(56, 56, 56, 0.1), inset -1px -1px 0 rgba(56, 56, 56, 0.1) !important;}::-webkit-scrollbar-thumb:horizontal{min-width:28px !important; box-shadow:inset 1px 1px 0 rgba(56, 56, 56, 0.1), inset -1px -1px 0 rgba(56, 56, 56, 0.1) !important;}::-webkit-scrollbar-thumb:hover{background-color:rgba(56, 56, 56, 0.6) !important; box-shadow:inset 1px 1px 1px rgba(56, 56, 56, 0.25), inset -1px -1px 1px rgba(56, 56, 56, 0.25) !important;}::-webkit-scrollbar-thumb:active{background-color:rgba(56, 56, 56, 0.7) !important; box-shadow:inset 1px 1px 3px rgba(56, 56, 56, 0.35), inset -1px -1px 3px rgba(56, 56, 56, 0.35) !important;}::-webkit-scrollbar-corner{background:trnasparent !important;}html::-webkit-scrollbar,body::-webkit-scrollbar{background: rgba(56, 56, 56, 0.5) !important;}body * {background-color: rgba(56, 56, 56, 0.44) !important;}* {color: #B6AA7B !important;}a:link,a:link *,a:link:hover,a:link:hover *,a:link:active,a:link:active * {color: #B6AA7B !important;}a:visited,a:visited *,a:visited:hover,a:visited:hover *,a:visited:active,a:visited:active * {color: #D9C077 !important;}#_maxthon_night_mode_mask{position:fixed !important; left:0 !important; right:0 !important; top:0 !important; Bottom:0 !important;z-index:100 !important; opacity:0.22 !important; background:#383838 !important; pointer-events:none !important;}
標簽： c語言 接口與實現
上傳時間： 2015-12-13
上傳用戶：qq253363112
css美化有序列表，貼出部分css代碼 <ol > <li>先涂粉底再涂防曬</li> <li>先涂防曬再涂粉底</li> </ol> <!doctype html> <html> <head> <title>CSS3 ordered list styles - demo</title> <style> body{ margin: 40px auto; width: 500px; } /* -------------------------------------- */ ol{ counter-reset: li; list-style: none; *list-style: decimal; font: 15px 'trebuchet MS', 'lucida sans'; padding: 0; margin-Bottom: 4em; text-shadow: 0 1px 0 rgba(255,255,255,.5); } ol ol{ margin: 0 0 0 2em; } /* -------------------------------------- */
上傳時間： 2018-08-22
上傳用戶：53660542
API函數詳解winAPI32.chm 表1 SetWindowPos函數的參數解釋 參數名 參數含義 hwnd 要移動的窗口的句柄（可以用窗體的hwnd屬性） hWndInsertAfter 關于如何在Z軸上放置窗口的標記（具體見表2） x 相當于窗口的Left屬性 y 相當于窗口的Top屬性 cx 相當于窗口的Right屬性 cy 相當于窗口的Bottom屬性 wFlags 關于如何移動窗口的標記（具體見表3）
上傳時間： 2019-12-01
上傳用戶：gdqiutao
The “Bottom-line” metrics of cash flow, demand, price, and return on investment are driven by a second set of financial metrics represented by value to the customer, cost, and the pace of innovation. Get them right relative to competition and impressive Bottom-line results should follow. Because of their importance, we call value to the customer, variable cost, and the pace of innovation the “fundamental metrics.”
標簽： Planning Product Systems Driven Value and
上傳時間： 2020-06-06
上傳用戶：shancjb
板子采用4層PCB，層疊情況：Top -> GND -> Power -> Bottom板子芯片情況：(1) FPGA: Xilinx Spartan6系列的XC6SLX16-FTG256(2) DDR3: Micron的MT41J128M16，2Gbit存儲容量(2) 電源：采用2片Onsemi的NCP1529分別為FPGA Core 1.2V和DDR3 1.5V提供電源FPGA的1.2V VDDCore電壓，1.5V的DDR3供電電壓，VREF的0.75V電壓都OK。往FPGA內部下載點燈程序OK，往SPI FLASH固化程序也OK。下一步，DDR3 的MCB實現
標簽： ddr3
上傳時間： 2022-06-13
上傳用戶：ttalli
一、建焊盤打開建立焊盤的軟件Pad Designer路徑：包括采用的制式，現在選公制單位毫米，精度3，右側問是否需要多重鉆孔，這個功能一般是用于做非圓孔。一般圓孔不用勾選。下面設定鉆孔樣式，一般是圓孔，鉆孔內部是否鍍銅 plated（no plated即為不鍍銅，一般用于塑膠件定位孔），再是鉆孔直徑，設置精度，是否偏移等。如果是表貼元件，鉆孔直徑設為0。如果是表面安裝元件，把signle layer mode勾選。焊盤一般需要 begin layer和end layer，還有就是soldmask_top，soldmask_Bottom，pastemask top，pastemask Bottom這幾個層面。對表面安裝元件來說，只需要begin layer，soldermask_top以及pastemask_top就可以了。鼠標左鍵點擊begin layer，會發現最下面三個對話框被刷新，在下面填入需要的值：從左到右：規則焊盤，熱焊盤，反焊盤。1規則焊盤下面需要填入焊盤形狀，長寬，是否有偏移。1熱焊盤，要求選擇焊盤類型，尺寸等；1反焊盤，作用是設定焊盤與周邊間距，一般比規則焊盤略大6-10mil。鼠標點擊soldermask_top，下面對話框刷新出該選項。按照需要填入數據。Pastemask top同樣處理。右邊上角還有視圖角度選擇，Xsection為水平視圖，TOP為從上往下看。
標簽： cadence allegro
上傳時間： 2022-07-02
上傳用戶：XuVshu
PrefaceDuring the past years, there has been a quickly rising interest in radio access technologies for providingmobile as well as nomadic and fixed services for voice, video, and data. The difference indesign, implementation, and use between telecom and datacom technologies is also becoming moreblurred. One example is cellular technologies from the telecom world being used for broadband dataand wireless LAN from the datacom world being used for voice-over IP.Today, the most widespread radio access technology for mobile communication is digital cellular,with the number of users passing 5 billion by 2010, which is more than half of the world’s population.It has emerged from early deployments of an expensive voice service for a few car-borne users,to today’s widespread use of mobile-communication devices that provide a range of mobile servicesand often include camera, MP3 player, and PDA functions. With this widespread use and increasinginterest in mobile communication, a continuing evolution ahead is foreseen.This book describes LTE, developed in 3GPP (Third Generation Partnership Project) and providingtrue 4G broadband mobile access, starting from the first version in release 8 and through the continuingevolution to release 10, the latest version of LTE. Release 10, also known as LTE-Advanced,is of particular interest as it is the major technology approved by the ITU as fulfilling the IMTAdvancedrequirements. The description in this book is based on LTE release 10 and thus provides acomplete description of the LTE-Advanced radio access from the Bottom up.Chapter 1 gives the background to LTE and its evolution, looking also at the different standardsbodies and organizations involved in the process of defining 4G. It also gives a discussion of the reasonsand driving forces behind the evolution.Chapters 2–6 provide a deeper insight into some of the technologies that are part of LTE and itsevolution. Because of its generic nature, these chapters can be used as a background not only for LTEas described in this book, but also for readers who want to understand the technology behind othersystems, such as WCDMA/HSPA, WiMAX, and CDMA2000.Chapters 7–17 constitute the main part of the book. As a start, an introductory technical overviewof LTE is given, where the most important technology components are introduced based onthe generic technologies described in previous chapters. The following chapters provide a detaileddescription of the protocol structure, the downlink and uplink transmission schemes, and the associatedmechanisms for scheduling, retransmission and interference handling. Broadcast operation andrelaying are also described. This is followed by a discussion of the spectrum flexibility and the associated
上傳時間： 2022-07-08
上傳用戶：
影響共面波導特性阻抗的主要因素有，基材介電常數（通常為 4.2～4.6，這里取 4.4）、信號層與參考地間距 H、線寬 W、對地間隙 S、銅皮厚度 T。表 1 列出了不同信號層與參考地間距 H 和銅皮厚度 T=0.035mm時，50 歐姆特性阻抗對應的線寬 W 及對地間隙 S 推薦值：表 1：不同信號層與參考地間距所對應的 50 歐姆共面波導線寬及對地間距推薦值如果是 2 層板，信號層為 Top 層，參考地為 Bottom 層，如下圖 3。如果是 4 層板，參考地可以是第 2層、第 3 層或者第 4 層。若參考地是第 3 層，信號層正下方第 2 層要禁鋪，禁鋪區域的寬度至少是信號線寬的 5 倍，如下圖 4。若參考地是第 4 層，信號層正下方第 2 層和第 3 層都要禁鋪，禁鋪區域的寬度至少是信號線寬的 5 倍，如下圖 5。如果是 6 層板以上以此類推。
標簽： 射頻
上傳時間： 2022-07-17
上傳用戶：
