Question

我正在尝试读取一个看起来如下的整数，

我想读取一个在数字2之后的整数，它在两者之间有空格。但我无法阅读它。我尝试过如下。

$i = 0;
while($i<10){
    fscanf(STDIN, "%d %d", $arr[$i]);
    // I have tried fscanf(STDIN, "%d\t%d", $arr[$i]); this too.
    $i++;
}

print_r($arr);

输出为：

[0] => 6
[1] => 1
[2] => 2
[3] => 2
[4] => 2
[5] => 1
[6] => 1

但我的预期输出是：

[0] => 6
[1] => 1
[2] => 2
[3] => 5
[4] => 2
[5] => 7
[6] => 2
[7] => 9
[8] => 1
[9] => 1

我也试过以下它也没有用。

while(fgets(STDIN)){
    echo $i++;
    echo "line: $f";
}

Answer 1

在阅读两个输入

时，您必须添加两个变量

    @Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {

        if (requestCode != INPUT_FILE_REQUEST_CODE || mFilePathCallback == null) {
            super.onActivityResult(requestCode, resultCode, data);
            return;
        }

        Uri[] results = null;


        // Check that the response is a good one
        if (resultCode == Activity.RESULT_OK) {
            if (data == null) {
                // If there is not data, then we may have taken a photo
                if (mCameraPhotoPath != null) {
                    results = new Uri[]{Uri.parse(mCameraPhotoPath)};
                }
            } else {
                if (data.getData() != null) {

                    String dataString = data.getDataString();
                    if (dataString != null) {
                        // results = new Uri[]{Uri.parse(dataString)};
                        // Will return "image:x*"
                        String wholeID = DocumentsContract.getDocumentId(Uri.parse(dataString.replace("%3A", ":")));

                        // Split at colon, use second item in the array
                        String id = wholeID.split(":")[1];

                        String type = wholeID.split(":")[0];


                        String[] column = {MediaStore.Images.Media.DATA};

                        // where id is equal to
                        String sel = MediaStore.Images.Media._ID + "=?";

                        Cursor cursor = getContentResolver().
                                query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
                                        column, sel, new String[]{id}, null);

                        String filePath = "";

                        int columnIndex = cursor.getColumnIndex(column[0]);

                        if (cursor.moveToFirst()) {
                            filePath = cursor.getString(columnIndex);
                            results = new Uri[]{Uri.parse("file:" + filePath)};
                        }

                        cursor.close();
                    }
                } else {
                    if (data.getClipData() != null) {

                        ClipData clipData = data.getClipData();
                        String[] filePathColumn = {MediaStore.Images.Media.DATA};
                        results = new Uri[clipData.getItemCount()];
                        for (int i = 0; i < clipData.getItemCount(); i++) {
                            ClipData.Item image = clipData.getItemAt(i);
                            Uri uri = image.getUri();

                            // Will return "image:x*"
                            String wholeID = DocumentsContract.getDocumentId(uri);

                            // Split at colon, use second item in the array
                            String id = wholeID.split(":")[1];

                            String type = wholeID.split(":")[0];
                            String contentUri;
                            if ("image".equals(type)) {
                                contentUri = MediaStore.Images.Media.DATA;
                            } else if ("video".equals(type)) {
                                contentUri = MediaStore.Video.Media.DATA;
                            } else if ("audio".equals(type)) {
                                contentUri = MediaStore.Audio.Media.DATA;
                            }

                            String[] column = {MediaStore.Images.Media.DATA};

                            // where id is equal to
                            String sel = MediaStore.Images.Media._ID + "=?";

                            Cursor cursor = getContentResolver().
                                    query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
                                            column, sel, new String[]{id}, null);

                            String filePath = "";

                            int columnIndex = cursor.getColumnIndex(column[0]);

                            if (cursor.moveToFirst()) {
                                filePath = cursor.getString(columnIndex);
                            }

                            cursor.close();
                            results[i] = Uri.parse("file:" + filePath);

                        }
                    }
                }
            }
        }

        mFilePathCallback.onReceiveValue(results);
        mFilePathCallback = null;

    } else if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.KITKAT) {
        if (requestCode != FILECHOOSER_RESULTCODE || mUploadMessage == null) {
            super.onActivityResult(requestCode, resultCode, data);
            return;
        }

        if (requestCode == FILECHOOSER_RESULTCODE) {

            if (null == this.mUploadMessage) {
                return;

            }

            Uri result[] = null;

            try {
                if (resultCode != RESULT_OK) {

                    result = null;

                } else {
                    if (data.getData() != null)
                        result[0] = data.getData();
                    else {
                        if (data.getClipData() != null) {
                            result = new Uri[data.getClipData().getItemCount()];
                            for (int i = 0; i < data.getClipData().getItemCount(); i++) {
                                result[i] = data.getClipData().getItemAt(i).getUri();
                            }
                        } else {
                            result = null;
                        }
                    }
                    // retrieve from the private variable if the intent is null
                    //result = data == null ? mCapturedImageURI : data.getData();
                }
            } catch (Exception e) {
                Toast.makeText(getApplicationContext(), "activity :" + e,
                        Toast.LENGTH_LONG).show();
            }

            mUploadMessage.onReceiveValue(result);
            mUploadMessage = null;

        }
    }

    return;
}

$handle = fopen('users.txt', "r"); $i = 0; $result = array(); while($i<10){ fscanf($handle, "%d\t%d",$arr[$i],$arr1[$i] ); $counter = count($result); $result[$counter] =$arr[$i]; if(!empty($arr1[$i])){ $counter = count($result); $result[$counter] =$arr1[$i]; } $i++; } echo "<pre>"; print_r($result);文件包含

users.txt

Answer 2

在运行时获取输入的另一种方法。

$arr = array();
$i = 0;
while($i<20){
    fscanf(STDIN, "%d\t%d",$arr[],$arr[]);
    $i++;
}
print_r(array_filter($arr));

希望，这对于从运行时获取输入值非常有用。

在上面的输出中跳过空格的更简洁的方法是

while($array = fscanf(STDIN, "%d\t%d")){
    //fscanf(STDIN, "%d %d",$arr[],$arr[]);
    //$i++;
    list($var1,$var2) = $array;
    echo $var1;
    echo $var2;
}

<强>输出：

6125272911

在php中如何读取两个带有空格的整数？

2 个答案: