大约有 42,000 项符合查询结果（耗时：0.0369秒） [XML]
Replacing a char at a given index in string? [duplicate]
...;= index)
return value;
else
return string.Concat(value.Select((c, i) => i == index ? newchar : c));
}
}
and then, for example:
string instr = "Replace$dollar";
string outstr = instr.ReplaceAt(7, ' ');
In the end I needed to utilize .Net Framework 2, so I ...
How to reference generic classes and methods in xml documentation
.... (This is seen e.g. on the MSDN refence page for the static System.String.Concat(IEnumerable<string>) method). :
XML documentation comment cref rules:
Surround the generic type parameter list with curly braces {} instead of with <> angle brackets. This spares you from escaping the la...
How to sort a dataFrame in python pandas by two or more columns?
... pd.DataFrame(np.random.randint(1, 5, (10,2)), columns=['a','b'])
df1 = pd.concat([df1]*100000)
def pdsort(df1):
return df1.sort_values(['a', 'b'], ascending=[True, False])
def lex(df1):
arr = df1.values
return pd.DataFrame(arr[np.lexsort((-arr[:, 1], arr[:, 0]))])
assert (pdsort(df1)...
Java / Android - How to print out a full stack trace?
...("\n"));
if (cs.contains(replace)) {
return r1.concat(cs.subSequence(cs.indexOf(replace) + replace.length(), cs.length()).toString()
Is there a template engine for Node.js? [closed]
...u might as well not use a template engine at all and just some functions / concats
– tjholowaychuk
Jan 28 '11 at 20:10
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Stop Excel from automatically converting certain text values to dates
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In my MySQL query (for CSV output through PHP), I used CONCAT('\t', column_name). Also did the trick. Thanks!
– Just Plain High
Jun 24 '16 at 14:39
1
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Is there a MySQL option/feature to track history of changes to records?
...ary_key_column as 'row id',
IF(t1.a_column = t2.a_column, t1.a_column, CONCAT(t1.a_column, " to ", t2.a_column)) as a_column
FROM MyDB.data_history as t1 INNER join MyDB.data_history as t2 on t1.primary_key_column = t2.primary_key_column
WHERE (t1.revision = 1 AND t2.revision = 1) OR t2.r...
Creating C macro with ## and __LINE__ (token concatenation with positioning macro)
...or is expected to for decades. The prime example is compiling X11, macro "Concat3" is broken, it's result is now MISNAMED C Identifier, which of course fails to build. and i'm beginning to thing build fails are their profession.
I think the answer here is "new C that breaks standards is bad C", t...
MySQL vs MongoDB 1000 reads
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admittedly, i was too surly; it was that html string concat of "<br>" that really 'urghed' me out. you don't need pretty print in tests. even iterating it seems like a php test and not a database test. overall, that AQLDatabase 'possibly/maybe' moment... more ingredients ...
LINQ order by null column where order is ascending and nulls should be last
...ull)
.OrderBy(m => m.Column)
.Concat(objList.where(m=>m.Column == null));
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