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[英]Multiple AuthorizationHandlers vs. Single AuthorizationHandler with Switch/If Statements
[英]Linq to objects multiple statements vs. single statement
在Linq to对象中,此代码之间的执行有任何不同:
var changedFileIDs = updatedFiles.Where(file => file.CurrentVersion != file.OriginalVersion).Select(file => file.ID);
var changedVaultFiles = filesToUpdate.Where(x => changedFileIDs.Contains(x.ID));
foreach (var file in changedVaultFiles)
{
Vault.Upload(file);
}
和这段代码?
var changedVaultFiles = filesToUpdate.Where(x => updatedFiles.Where(file => file.CurrentVersion != file.OriginalVersion).Select(file => file.ID).Contains(x.ID));
foreach (var file in changedVaultFiles)
{
Vault.Upload(file);
}
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