1、free net

free net發(fā)音

英：　　美：

free net中文意思翻譯

常用釋義：自由網(wǎng)絡(luò)

自由網(wǎng)

free net雙語(yǔ)使用場(chǎng)景

1、Windows PowerShell is a free Net-based command-line shell and scripting language designed for system administrators by Microsoft.───Windows PowerShell是一種免費(fèi)的、基于網(wǎng)絡(luò)的、命令行式的外殼和腳本語(yǔ)言，它是微軟針對(duì)系統(tǒng)管理員設(shè)計(jì)的。

2、NAnt is a free . NET build tool that operates in a manner similar to Ant.───NAnt是以類似于Ant的方式運(yùn)行的免費(fèi)的.NET構(gòu)建工具。

3、Playboy has whipped open the bathrobe on its latest plan to combat falling sales and the ready availability of free net smut – an online version of the magazine's entire 57-year back catalogue.───Playboy雜志銷售量的下滑，Playboy已經(jīng)開(kāi)始新的計(jì)劃，雜志將在自由的互聯(lián)網(wǎng)上銷售---網(wǎng)上提供過(guò)去57年的每期雜志。

4、Because the free net adjustment model is rank-defect, the normal equation derived with the LS method has an infinite number of solutions.───由于自由網(wǎng)平差模型秩虧，法方程存在無(wú)窮多組解。

5、The method of choosing data by free net adjustment makes adjustment accuracy improved greatly, so it is an addition to the method of data screening by traditional classical adjustment.───這是對(duì)傳統(tǒng)經(jīng)典平差數(shù)據(jù)篩選方法的一種補(bǔ)充，使得平差精度大為提高。

free net相似詞語(yǔ)短語(yǔ)

1、augussafety net───八月

2、net worth───[會(huì)計(jì)]凈值；資本凈值；資本凈值，凈值

3、acnode net───節(jié)點(diǎn)網(wǎng)

4、net margin───凈利；凈賺

5、net sales───凈銷售額；扣除銷貨折扣和退貨后凈額

6、gill net───n.刺網(wǎng)

7、net purchases───[貿(mào)易]進(jìn)貨凈額；進(jìn)料凈額；購(gòu)買凈額

8、net friend───網(wǎng)友

9、net───v.凈賺；用網(wǎng)捕；（巧妙地）捕獲，得到；（將球）踢入球門；用網(wǎng)覆蓋；使（某人）獲得（利益、收入）；（計(jì)算時(shí)）扣除……（以得出凈額）；adj.純的；最后的；原價(jià)的；（重量）凈的；（高爾夫球得分）凈得的；n.網(wǎng)；有專門用途的網(wǎng)；球門網(wǎng)；球網(wǎng)；網(wǎng)絡(luò)（等于Internet）；（板球）練球場(chǎng)；（板球）一次練球；捕魚總量；網(wǎng)眼織物；陷阱；候選人的選擇面；adv.凈地；凈賺地；n.(Net)（俄）內(nèi)（人名）

2、LWIP如何建立多個(gè)TCP連接

原始版本的lwip忘光了，提供我修改的，希望有幫助

/*線程空間池*/

typedef struct tagNETTHREAD

{

BOOL state;//狀態(tài)

int prio; //任務(wù)prio

OS_STK threadStk[NET_THREAD_STK_LEN];//堆棧空間

}NETTHREAD, *PNETTHREAD;

/*初始化線程空間*/

static BOOL ThreadSpaceInit(void)

{

int i;

if ((NET_THREAD_MAX_NUM + 8 + 1) > OS_MAX_TASKS){ //線程任務(wù)最大數(shù)目超過(guò)OS_MAX_TASKS

return FALSE;

}

for (i = 0; i < NET_THREAD_MAX_NUM; i ++){

NetThreads.state = THREAD_SPACE_STATE_FREE; //狀態(tài)為free

NetThreads.prio = NET_RECV_TASK_PRIO - 1 - i; //任務(wù)prio分配為tcp主循環(huán)任務(wù)的上NET_THREAD_MAX_NUM個(gè)

}

return TRUE;

}

/*每accept一個(gè)socket分配一個(gè)線程*/

int NetThreadCreate(void * s)

{

int i;

for (i = 0; i < NET_THREAD_MAX_NUM; i ++){ //搜索線程池，首先釋放已經(jīng)銷毀的線程資源

if (NetThreads.state == THREAD_SPACE_STATE_DELING)//線程狀態(tài)是否為del

if (OSTaskDel(NetThreads.prio) == OS_TASK_DEL_ERR){//若是，判斷任務(wù)是否已經(jīng)刪除

NetThreads.state = THREAD_SPACE_STATE_FREE;//若任務(wù)已經(jīng)刪除，則釋放線程資源

}

}

for (i = 0; i < NET_THREAD_MAX_NUM; i ++){//搜索線程池，看是否有可用的線程資源

OS_ENTER_CRITICAL();

if (NetThreads.state == THREAD_SPACE_STATE_FREE){

NetThreads.state = THREAD_SPACE_STATE_USED;

OS_EXIT_CRITICAL();

/*創(chuàng)建線程任務(wù)，server是scoket里面的任務(wù)服務(wù)函數(shù)，所以首先需要添加socket里面的域，并在建立服務(wù)期線程

connect成功的時(shí)候給你賦值*/

if (OSTaskCreate(((PSOCKET)s)->server, s, &NetThreads.threadStk[NET_THREAD_STK_LEN - 1],

NetThreads.prio)){

return (int)&NetThreads; //返回線程id，必須在socket里面在添加一個(gè)域用來(lái)保存

}

NetThreads.state = THREAD_SPACE_STATE_FREE;

}else{

OS_EXIT_CRITICAL();

}

}

return ERROR;

}

/*銷毀一個(gè)線程*/

void NetThreadDel(void * s)

{

PNETTHREAD pt;//根據(jù)socket得到線程id（pt），

//線程空間的state要設(shè)置為del

pt->state = THREAD_SPACE_STATE_DELING;

//在根據(jù)次id得到線程任務(wù)prio，刪除任務(wù)

OSTaskDel(pt->prio);

}