大约有 30,000 项符合查询结果(耗时:0.0225秒) [XML]

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Fastest way to iterate over all the chars in a String

In Java, what would the fastest way to iterate over all the chars in a String, this: 8 Answers ...
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List of standard lengths for database fields

...those were over 25, and they were all cases where data imports resulted in extra junk winding up in that field.) Last name was similar to first name. Email addresses maxed out at 62 characters. Most of the longer ones were actually lists of email addresses separated by semicolons. Street address ma...
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C# Equivalent of SQL Server DataTypes

...e None nvarchar(1), nchar(1) SqlChars, SqlString Char, String, Char[] nvarchar SqlChars, SqlString String, Char[] nchar SqlChars, SqlString String, Char[] text ...
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Why does SIGPIPE exist?

...d.h> # include <stdio.h> # include <signal.h> # include <string.h> int writeCount = 0; void sighandler(int sig) { char buf1[30] ; sprintf(buf1,"signal %d writeCount %d\n", sig, writeCount); ssize_t leng = strlen(buf1); write(2, buf1, leng); _exit(1); } ...
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How do I create a unique ID in Java? [duplicate]

I'm looking for the best way to create a unique ID as a String in Java. 11 Answers 11 ...
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How can I convert comma separated string into a List

This doesn't work cause the split method returns a string[] 11 Answers 11 ...
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How do I trim leading/trailing whitespace in a standard way?

...ferably standard method of trimming leading and trailing whitespace from a string in C? I'd roll my own, but I would think this is a common problem with an equally common solution. ...
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How to convert a number to string and vice versa in C++

... Update for C++11 As of the C++11 standard, string-to-number conversion and vice-versa are built in into the standard library. All the following functions are present in <string> (as per paragraph 21.5). string to numeric float stof(const string&am...
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How to convert a char to a String?

I have a char and I need a String . How do I convert from one to the other? 12 Answers ...
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MySQL - How to select data by string length

Is there a MySQL function to do this (of course instead of string_length )? 6 Answers ...