大约有 40,000 项符合查询结果（耗时：0.0522秒） [XML]
UTF-8 byte[] to String
...rsets.UTF_8);
And if you're feeling lazy, you can use the Apache Commons IO library to convert the InputStream to a String directly:
String str = IOUtils.toString(inputStream, StandardCharsets.UTF_8);
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Changing UIButton text
...at you have to do to change the title text for a button's state.
[calibrationButton setTitle:@"Calibration" forState:UIControlStateNormal];
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Insert HTML with React Variable Statements (JSX)
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You can use dangerouslySetInnerHTML, e.g.
render: function() {
return (
<div className="content" dangerouslySetInnerHTML={{__html: thisIsMyCopy}}></div>
);
}
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记一次MongoDB性能问题 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...avoid performance problems: numactl –interleave=all mongod [other options]
当时我并不太清楚NUMA是什么东西，所以没有处理，只是把问题反馈给了运维人员，后来知道运维人员也没有理会这茬儿，所以问题的序幕就这样拉开了。
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How to execute a file within the python interpreter?
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@pzkpfw python can point to any version of python. I have seen environments with only python v3 where python points to python3.
– StockB
Aug 3 '16 at 18:08
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is it possible to update UIButton title/text programmatically?
...it, thanks. I really wish Objective-C would just throw a NullPointerException in cases like this, instead of silently pretending that it's OK to send a message to a nil object. This bites me almost daily... ugh!
– George Armhold
Jun 23 '09 at 17:26
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How do I determine the current operating system with Node.js
... You should use the OS module better, it's even in the documentation. os.platform specifically
– alessioalex
Dec 30 '11 at 20:58
94
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How to convert hashmap to JSON object in Java
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You can use:
new JSONObject(map);
Caution: This will only work for a Map<String, String>!
Other functions you can get from its documentation
http://stleary.github.io/JSON-java/index.html
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Can I query MongoDB ObjectId by date?
... in the ObjectId in great detail.
Briefly in JavaScript code:
/* This function returns an ObjectId embedded with a given datetime */
/* Accepts both Date object and string input */
function objectIdWithTimestamp(timestamp) {
/* Convert string date to Date object (otherwise assume timestamp is a...
Rearranging Tab Bar Controller Order in StoryBoard
In my app iPhone app I have a Tab Bar Controller with 4 relationships to 4 different Table View Controllers. Is there a way to rearrange the order of the relationship in the StoryBoard graphically? I can't find a way to do this and I'm sure I must be missing something!
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