建议我使用日期格式自定义Excel

Question

在附件中，我需要员工以(HH:MM AM/PM)格式手动输入登录和注销时间。在E栏中，我需要一个公式来计算其间的持续时间和小时数。

我尝试使用=text(D2-C2,"h:mm")公式，当我将所有列应用于所有列时，它们会使用现有的空单元格进行更新，并在E列中生成00:00。

我只需要在更新C和D列值时更新E列。

有人可以帮我这方面吗？我需要时间框架作为12小时格式。

Answer 1

您只能在=IF(AND(C1<>"",D1<>""),D1-C1,"")列中使用No Of Hours来计算填充Log In Time和Log Out Time。

对于格式设置，您可以对Custom Format列使用h:mm - No Of Hours。

Answer 2

1，尽量不要将实时转换为文本。

1. 在F2中使用此公式然后填写。 dow <- c("Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday") set.seed(2) df <- data.frame(Day_of_week = sample(7, size=20, replace=TRUE)) head(df) # Day_of_week # 1 2 # 2 5 # 3 5 # 4 2 # 5 7 # 6 7 df$Day_of_week <- dow[df$Day_of_week] head(df) # Day_of_week # 1 Monday # 2 Thursday # 3 Thursday # 4 Monday # 5 Saturday # 6 Saturday 如果班次跨越午夜，这也应该有用。

2. 在单元格上使用此自定义数字格式import liquibase.change.core.AddColumnChange; import liquibase.change.core.CreateTableChange; import liquibase.change.core.RenameColumnChange; import liquibase.change.core.RenameTableChange; import liquibase.changelog.ChangeLogParameters; import liquibase.changelog.ChangeSet; import liquibase.changelog.DatabaseChangeLog; import liquibase.exception.ChangeLogParseException; import liquibase.parser.core.yaml.YamlChangeLogParser; import liquibase.resource.FileSystemResourceAccessor; import org.junit.Before; import org.junit.Test; import org.springframework.core.io.Resource; import org.springframework.core.io.support.PathMatchingResourcePatternResolver; import org.springframework.core.io.support.ResourcePatternResolver; import java.io.IOException; import java.util.Arrays; import java.util.Comparator; import java.util.List; import java.util.stream.Stream; import static java.util.stream.Collectors.toList; import static org.assertj.core.api.Assertions.assertThat; import static org.junit.Assert.fail; public class LiquibaseScriptsTest { public static final String LIQUIBASE_FILES_LOCATION = "src/main/resources/db/changelog/changes/*.yml"; public static final int NB_LAST_FILES_TO_CHECK = 5; private static final int ORACLE_TABLE_NAME_MAX_LENGTH = 30; private static final int ORACLE_COLUMN_NAME_MAX_LENGTH = 30; private List<DatabaseChangeLog> scriptsToCheck; private final static Comparator<Resource> resourceComparator = (r1, r2) -> r1.getFilename().compareTo(r2.getFilename()); private static YamlChangeLogParser parser = new YamlChangeLogParser(); @Before public void setUp() throws IOException { ResourcePatternResolver resourceFinder = new PathMatchingResourcePatternResolver(this.getClass().getClassLoader()); Resource[] resources = resourceFinder.getResources("file:" + LIQUIBASE_FILES_LOCATION); scriptsToCheck = Arrays.asList(resources).stream() //looking only at the latest files, assuming their name is indexed .sorted(resourceComparator.reversed()) .limit(NB_LAST_FILES_TO_CHECK) .map(r -> toLiquibaseScript(r)) .collect(toList()); } @Test public void someScriptsAreChecked() { assertThat(scriptsToCheck).as("There's no script to check - are you sure you configured the path correctly ? ").isNotEmpty(); assertThat(scriptsToCheck.size()).isLessThanOrEqualTo(NB_LAST_FILES_TO_CHECK); } @Test public void tableNamesShouldBeLessThanOracleMaxSize_whenCreated() { Stream<CreateTableChange> createTableChanges = getChangesAsStreamOf(CreateTableChange.class); createTableChanges.forEach(tableCreationChange -> { assertThat(tableCreationChange.getTableName().length()) .as("change " + tableCreationChange.getChangeSet().getId() + " - table name is too long - " + tableCreationChange.getTableName() + " is " + tableCreationChange.getTableName().length() + "char long while maximum for Oracle is " + ORACLE_TABLE_NAME_MAX_LENGTH) .isLessThanOrEqualTo(ORACLE_TABLE_NAME_MAX_LENGTH); }); } @Test public void tableNamesShouldBeLessThanOracleMaxSize_whenModified() { Stream<RenameTableChange> renameTableChanges = getChangesAsStreamOf(RenameTableChange.class); renameTableChanges.forEach(tableRenameChange -> { assertThat(tableRenameChange.getNewTableName().length()) .as("change " + tableRenameChange.getChangeSet().getId() + " - table name is too long - " + tableRenameChange.getNewTableName() + " is " + tableRenameChange.getNewTableName().length() + "char long while maximum for Oracle is " + ORACLE_TABLE_NAME_MAX_LENGTH) .isLessThanOrEqualTo(ORACLE_TABLE_NAME_MAX_LENGTH); }); } @Test public void columnNamesShouldBeLessThanOracleMaxSize_whenCreated() { Stream<AddColumnChange> addColumnChanges = getChangesAsStreamOf(AddColumnChange.class); addColumnChanges.flatMap(columnCreationChanges -> columnCreationChanges.getColumns().stream()) .forEach(columnCreationChange -> { assertThat(columnCreationChange.getName().length()) .as("column name is too long - " + columnCreationChange.getName() + " is " + columnCreationChange.getName().length() + "char long while maximum for Oracle is " + ORACLE_COLUMN_NAME_MAX_LENGTH) .isLessThanOrEqualTo(ORACLE_COLUMN_NAME_MAX_LENGTH); }); } @Test public void columnNamesShouldBeLessThanOracleMaxSize_whenModified() { Stream<RenameColumnChange> renameColumnChanges = getChangesAsStreamOf(RenameColumnChange.class); renameColumnChanges.forEach(columnRenameChange -> { assertThat(columnRenameChange.getNewColumnName().length()) .as("column name is too long - " + columnRenameChange.getNewColumnName() + " is " + columnRenameChange.getNewColumnName().length() + "char long while maximum for Oracle is " + ORACLE_COLUMN_NAME_MAX_LENGTH) .isLessThanOrEqualTo(ORACLE_COLUMN_NAME_MAX_LENGTH); }); } private <E> Stream<E> getChangesAsStreamOf(Class E) { Stream<Stream<ChangeSet>> changeSets = scriptsToCheck.stream().map(script -> script.getChangeSets().stream()); Stream<ChangeSet> changeSetStream = changeSets.flatMap(changeSet -> changeSet); return changeSetStream.flatMap(changeSet -> changeSet.getChanges().stream()) .filter(E::isInstance) .map(change -> (E) change); } private DatabaseChangeLog toLiquibaseScript(Resource r) { try { System.out.println("going to apply checks on "+r.getFilename()); return parser.parse(r.getFile().getCanonicalPath(), new ChangeLogParameters(), new FileSystemResourceAccessor()); } catch (ChangeLogParseException | IOException e) { fail("couldn't parse Liquibase script - " + r.getFilename() + " - " + e.getMessage()); } return null; } } 。

示例：

https://en.wikipedia.org/wiki/Unicode_and_email