大约有 23,000 项符合查询结果（耗时：0.0260秒） [XML]
What does the Q_OBJECT macro do? Why do all Qt objects need this macro?
...ual const QMetaObject *metaObject() const; virtual void *qt_metacast(const char *); virtual int qt_metacall(QMetaObject::Call, int, void **); static inline QString tr(const char *s, cons
t char *c = nullptr, int n = -1) { return staticMetaObject.tr(s, c, n); } __attribute__ ((__deprecated__)) static...
How to append a newline to StringBuilder
I have a StringBuilder object,
9 Answers
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Polymorphism in C++
...on, loop unrolling, static stack-based arrays vs heap)
__FILE__, __LINE__, string literal concatenation and other unique capabilities of macros (which remain evil ;-))
templates and macros test semantic usage is supported, but don't artificially restrict how that support is provided (as virtual disp...
UPDATE and REPLACE part of a string
... table with two columns, ID and Value . I want to change a part of some strings in the second column.
9 Answers
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split string only on first instance - java
I want to split a string by '=' charecter. But I want it to split on first instance only. How can I do that ? Here is a JavaScript example for '_' char but it doesn't work for me
split string only on first instance of specified character
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Remove new lines from string and replace with one empty space
Want to remove all new lines from string.
19 Answers
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Java: Why is the Date constructor deprecated, and what do I use instead?
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What Date did was parse a String, so instead we now have to substring a String which contains the year, month and day? Seems like a lot of extra hassle for something which in most cases doesn't need such complex logic and methods added to it.
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How many bytes does one Unicode character take?
... a programmer a hell when it comes to writing strlen(), substr() and other string manipulation functions on UTF8 arrays. This kind of work will be never complete and always buggy.
– Nulik
Sep 26 '16 at 16:15
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How to modify a text file?
I'm using Python, and would like to insert a string into a text file without deleting or copying the file. How can I do that?
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How to search a specific value in all tables (PostgreSQL)?
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can you explain in detail .. ? How to search string 'ABC' into all tables ?
– Mr. Bhosale
Jan 28 '17 at 6:47
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