大约有 22,000 项符合查询结果（耗时：0.0277秒） [XML]
How to grep a text file which contains some binary data?
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You can use "strings" to extract strings from a binary file, for example
strings binary.file | grep foo
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Convert array of integers to comma-separated string
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var result = string.Join(",", arr);
This uses the following overload of string.Join:
public static string Join<T>(string separator, IEnumerable<T> values);
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LEN function not including trailing spaces in SQL Server
....aspx, which states LEN "returns the number of characters of the specified string expression, excluding trailing blanks". It is, however, an easy detail on to miss if you're not wary.
You need to instead use the DATALENGTH function - see http://msdn.microsoft.com/en-us/library/ms173486(SQL.90).asp...
How to create a new database after initally installing oracle database 11g Express Edition?
...s Connection Name, Username, and Password.
For security, the password characters that you type appear as
asterisks.
Near the Password field is the check box Save Password. By default, it
is deselected. Oracle recommends accepting the default.
In the New/Select Database Connection ...
Specifically, what's dangerous about casting the result of malloc?
...f. Here's an example code fragment for discussion purposes.
main()
{
char * c = (char *)malloc(2) ;
printf("%p", c) ;
}
Suppose that the returned heap pointer is something bigger than what is representable in an int, say 0xAB00000000.
If malloc is not prototyped to return a pointer, the ...
Rails: select unique values from a column
..."models"."rating" FROM "models"
This has the advantages of not using sql strings and not instantiating models
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Calendar returns wrong month [duplicate]
...ts with 0.
Here's a tip: you should be using SimpleDateFormat to get the String-representation of the month:
Calendar rightNow = Calendar.getInstance();
java.text.SimpleDateFormat df1 = new java.text.SimpleDateFormat("MM");
java.text.SimpleDateFormat df2 = new java.text.SimpleDateFormat("MMM");
j...
Numeric for loop in Django templates
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Generate a string of arbitrary length with 'rjust' {% for i in "x"|rjust:"100" %}
– Aaron
Mar 30 '16 at 19:48
29
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How to use R's ellipsis feature when writing your own function?
...owever, as it adds some ambiguity and further complication to the argument string (and makes the function signature unclear to any other user). The argument list is an important piece of documentation for function users.
Otherwise, it is also useful for cases when you want to pass through paramete...
Objective-C: Reading a file line by line
...ay I need to read each line separately and want to treat each line as an NSString. What is the most efficient way of doing this?
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