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https://github.com/NaturalInt...

一般存的是圖片的地址，不會(huì)直接存圖片

api中，你不應(yīng)該暴露key和加密方法到客戶端，你應(yīng)該采用https + 用戶token的方式訪問你后端接口

好吧，我來答吧

刪除了出錯(cuò)文件的源。
rm -rf /etc/apt/source.list.d/gusbemacbe*
sudo apt-get update 沒有出錯(cuò)
采用了docker官網(wǎng)上下載安裝包的方式下載docker

吐血了
快

第二次請(qǐng)求戴上第一次請(qǐng)求返回的Cookie

一個(gè)框表示一個(gè)div

$.ajax({
  ....
  data: data1,
  ....
});

netstat -ano | findstr 3000
taskkill /pid pid /f

Update:

如果等于這個(gè)，程序會(huì)更慢，我覺得應(yīng)該等同于a == b || a > b才對(duì)。

That's not true. Your platform will not split >= into == and >. The implementation varies from platform to platform and compiler to compiler. From Assembly(https://godbolt.org/g/6MCvQq):

if (a >= b)

=>

  mov eax, dword ptr [rbp - 12]
  cmp eax, dword ptr [rbp - 16]
  jl .LBB0_4

   if (a > b)

=>

   cmp r8d, dword ptr [rbp - 16]
   mov dword ptr [rbp - 20], eax # 4-byte Spill
   jle .LBB0_2

Both have 3 instructions.

Also take a look at these awesome answers: https://stackoverflow.com/que...

Both are true. || is logic or operator in some languages(which belongs to logic operators). I assume you have limited the symbols to c++(because you didn't use the more general terms like logic or and logic and. In standard ml, logic or is expressed as or, same for logic and)

In c++, please correct = to ==. The former is a Direct assignment operator, while the latter is Equal to operator. If a satisfy the condition, the b will not be used. For example:

if (a && b)

is equal to

if (a)
    if(b)
        ...
        

BTW, in some algorithms, if you want to judge if a node exists (like arr[x][y] == 'x'), it should be put in b rather than a. Because sometimes a is used to filter out-of-range conditions.

是不是在這個(gè)目錄下沒有寫權(quán)限

react中的key屬性，它是一個(gè)特殊的屬性，它是出現(xiàn)不是給開發(fā)者用的（例如你為一個(gè)組件設(shè)置key之后不能獲取組件的這個(gè)key props），而是給react自己用的?？梢詤⒖?a >https://segmentfault.com/a/11...

你服務(wù)器上面有沒有安裝crul擴(kuò)展？

刪掉node_modules文件夾

npm install url-search-params

兄弟要學(xué)會(huì)用F12查看控制臺(tái)反饋，你這“一片空白”的描述，實(shí)在沒法給你建議

這value是硬塞進(jìn)去的嗎。。。"符號(hào)沒有轉(zhuǎn)義，所以value="[{"就結(jié)束了。

供參考 https://blog.csdn.net/dingjia...

ios日期的話試下這種：YYYY/MM/DD HH:MM:MM

mySort這個(gè)函數(shù)是用來干嘛的看不明白