大约有 47,000 项符合查询结果(耗时:0.0416秒) [XML]

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Change font size of UISegmentedControl

Can anyone please tell me how can I change the font type and size of UISegmentedControl ? 16 Answers ...
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How can I get around MySQL Errcode 13 with SELECT INTO OUTFILE?

I am trying to dump the contents of a table to a csv file using a MySQL SELECT INTO OUTFILE statement. If I do: 13 Answers...
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SQL error “ORA-01722: invalid number”

... Well it also can be : SELECT t.col1, t.col2, ('test' + t.col3) as test_col3 FROM table t; where for concatenation in oracle is used the operator || not +. In this case you get : ORA-01722: invalid number ... ...
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How to reset sequence in postgres and fill id column with new data?

... SELECT setval('seq', 1, FALSE) should do the same (here, the third argument, FALSE, does the magic, as it shows that nextval must be 1 instead of 2) – Vasilen Donchev Sep 22 '15 at 14:43...
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Insert new column into table in sqlite?

... populate it with the old data: INSERT INTO {tableName} (name, qty, rate) SELECT name, qty, rate FROM TempOldTable; Then delete the old table: DROP TABLE TempOldTable; I'd much prefer the second option, as it will allow you to completely rename everything if need be. ...
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How do I get the value of text input field using JavaScript?

... 'searchtext' in your page. Method 5: Use the powerful document.querySelector('selector').value which uses a CSS selector to select the element For example, document.querySelector('#searchTxt').value; selected by id document.querySelector('.searchField').value; selected by class ...
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how to check the dtype of a column in python pandas

...know this is a bit of an old thread but with pandas 19.02, you can do: df.select_dtypes(include=['float64']).apply(your_function) df.select_dtypes(exclude=['string','object']).apply(your_other_function) http://pandas.pydata.org/pandas-docs/version/0.19.2/generated/pandas.DataFrame.select_dtypes.h...
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How to for each the hashmap? [duplicate]

...I did too, in case it helps someone else : HashMap<String, HashMap> selects = new HashMap<String, HashMap>(); for(Map.Entry<String, HashMap> entry : selects.entrySet()) { String key = entry.getKey(); HashMap value = entry.getValue(); // do what you have to do here ...
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No identities were available - administrator request

...uble click) the new provisioning profile. In your project's build settings select the NEW provisioning profile (it might have the same name as the old one) In your project's build settings update your code signing identities (all of them) to the new one if there is one. (The old one was probably exp...
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Does the C++ standard mandate poor performance for iostreams, or am I just dealing with a poor imple

Every time I mention slow performance of C++ standard library iostreams, I get met with a wave of disbelief. Yet I have profiler results showing large amounts of time spent in iostream library code (full compiler optimizations), and switching from iostreams to OS-specific I/O APIs and custom buffer...