小编sun*_*tch的帖子

我使用bootstrap并尝试将div(span7)置于中心位置:

<div class="row-fluid">
    <div id="main" class="span7">
        Lorem ipsum dolor sit amet
    </div>
</div>

我的css代码是:

#main{
    margin:0px auto;
}

但它不是设在中心.我怎样才能设置中心？

我正在尝试使用这样的 useEffect 函数：

    const [data, setData] = useState({ courses: [] });
    
    useEffect(async () => {
        const result = await axios.get(
            "http://example.com/api/v1/categories/"
        );
    
        await setData(result.data);
    }, []);
    
    console.log(data);

return (
    <div>
        <div>{data.info1}</div>
        <div>{data.info2}</div>
        <div>{data.info3}</div>
        <div>{data.info4}</div>
    </div>
);

但是当我尝试使用data变量时，它有时会引发此错误：

TypeError: func.apply is not a function
HTMLUnknownElement.callCallback
C:/asdasd/node_modules/react-dom/cjs/react-dom.development.js:188
  185 |     window.event = windowEvent;
  186 |   }
  187 | 
> 188 |   func.apply(context, funcArgs);
      | ^  189 |   didError = false;
  190 | } // Create a global error event handler. We …

我正在准备一些代码:

for(int a = 1; a <= 100; a++)    //loop a (main loop)
{
    for(int b = 1000; b <= 2000; b++)    //loop b
    {
       if(b == 1555)
          break;
    }

    for(int c = 2001; c <= 3000; c++)    //loop c
    {
       .
       .
       .
    }
}

我想int a通过break;在b循环(循环变量int b)中使用语句来打破主循环(循环变量).

我该怎么做？

PHP函数可以返回很多没有数组的变量吗？

我想这样:

<?php

public function a()
{
   $a = "a";
   $b = "b";
   $c = "c";

}

echo a()->a;
echo a()->b;
echo a()->c;

?>

如何访问$ a,$ b,$ c变量？

正如前面提到的Node.js - Find home directory in platform agnostic way问题，我们可以通过以下代码找到主文件夹：

const homedir = require('os').homedir();

但是如何在 Windows 中找到桌面文件夹，无论它是什么语言？因为在 Windows 桌面文件夹名称与语言不同。

我已经训练了我自己的图形模型。我想在浏览器上使用它。这是我的代码：

async function predict() {
        const model = await tf.loadGraphModel('./model/model.json');
        let img = document.getElementById('test');
        var example = tf.browser.fromPixels(img);
        example = example.expandDims(0);
        const output = await model.predict(example).data();
        console.log(output);
    }

当我运行它时，它在控制台上出现此错误：

Uncaught (in promise) Error: This execution contains the node 'SecondStagePostprocessor/BatchMultiClassNonMaxSuppression/map/while/Exit_4', which has the dynamic op 'Exit'. Please use model.executeAsync() instead. Alternatively, to avoid the dynamic ops, specify the inputs [SecondStagePostprocessor/BatchMultiClassNonMaxSuppression/map/TensorArrayStack_2/TensorArrayGatherV3]
    at t.compile (tfjs:2)
    at t.execute (tfjs:2)
    at t.execute (tfjs:2)
    at predict ((index):85)
    at /websites/optik2/async http://localhost/websites/optik2/:96

我需要predict()功能，executeAsync()不是很好。

编辑 …

我正在使用 VueJS 版本 2.6.12。

我本地的一切都很好。效果很好。另一方面，在远程存储库（由管道检查）上，它给出了以下错误：

> vue-cli-service serve
internal/modules/cjs/loader.js:834
  throw err;
  ^
Error: Cannot find module 'vue-cli-plugin-vuetify'
Require stack:
- /app/node_modules/@vue/cli-service/lib/Service.js
- /app/node_modules/@vue/cli-service/bin/vue-cli-service.js
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:831:15)
    at Function.Module._load (internal/modules/cjs/loader.js:687:27)
    at Module.require (internal/modules/cjs/loader.js:903:19)
    at require (internal/modules/cjs/helpers.js:74:18)
    at idToPlugin (/app/node_modules/@vue/cli-service/lib/Service.js:145:14)
    at /app/node_modules/@vue/cli-service/lib/Service.js:184:20
    at Array.map (<anonymous>)
    at Service.resolvePlugins (/app/node_modules/@vue/cli-service/lib/Service.js:170:10)
    at new Service (/app/node_modules/@vue/cli-service/lib/Service.js:32:25)
    at Object.<anonymous> (/app/node_modules/@vue/cli-service/bin/vue-cli-service.js:15:17) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [
    '/app/node_modules/@vue/cli-service/lib/Service.js',
    '/app/node_modules/@vue/cli-service/bin/vue-cli-service.js'
  ]
}
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! metronic-vue-demo1@7.2.0 start: `vue-cli-service serve`
npm ERR! Exit status …

有没有在C++中的任何功能,将所有的数据类型(double,int,short等),以string？

我正在尝试filepreview使用npm. 但它总是给出错误。这是错误：

D:\Program Files\nodejs\PalettenzettelGenerator>npm install filepreview

> fibers@1.0.15 install D:\Program Files\nodejs\PalettenzettelGenerator\node_modules\synchronize\node_modules\fibers
> node build.js || nodejs build.js


D:\Program Files\nodejs\PalettenzettelGenerator\node_modules\synchronize\node_modules\fibers>if not defined npm_config_node_gyp (node "D:\Program Files\nodejs\node_modules\npm\node_modules\npm-lifecycle\node-gyp-bin\\..\..\node_modules\node-gyp\bin\node-gyp.js" rebuild --release )  else (node "D:\Program Files\nodejs\node_modules\npm\node_modules\node-gyp\bin\node-gyp.js" rebuild --release )
gyp ERR! UNCAUGHT EXCEPTION
gyp ERR! stack Error: spawn D:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\15.0\Bin\MSBuild.exe ENOENT
gyp ERR! stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:240:19)
gyp ERR! stack     at onErrorNT (internal/child_process.js:415:16)
gyp ERR! stack     at process._tickCallback (internal/process/next_tick.js:63:19)
gyp ERR! System Windows_NT 10.0.17134
gyp ERR! command …

我正在尝试生成 mnist 数据集图像。这是我的代码：

fns.py:

import math
import numpy as np

def combine_images(generated_images):
    total,width,height = generated_images.shape[:-1]
    cols = int(math.sqrt(total))
    rows = math.ceil(float(total)/cols)
    combined_image = np.zeros((height*rows, width*cols),
                              dtype=generated_images.dtype)

    for index, image in enumerate(generated_images):
        i = int(index/cols)
        j = index % cols
        combined_image[width*i:width*(i+1), height*j:height*(j+1)] = image[:, :, 0]
    return combined_image

def show_progress(epoch, batch, g_loss, d_loss, g_acc, d_acc):
    msg = "epoch: {}, batch: {}, g_loss: {}, d_loss: {}, g_accuracy: {}, d_accuracy: {}"
    print(msg.format(epoch, batch, g_loss, d_loss, g_acc, d_acc))

主要.py:

from tensorflow.python.keras.models import Sequential
from …