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各编程语言读写文件汇总 - C/C++ - 清泛网 - 专注C/C++及内核技术
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一、PHP
二、C#
三、C
3.1、fgets、fputs文本读写
3.2、fread、fwrite二进制读写
四、C++
五、Java
PHP读写文件：
// 写文件
$fp = fopen("log.txt", "a");
fwrite($fp, $str);
fclose($fp);
// 读文件
$fp = fope...
How can I make setInterval also work when a tab is inactive in Chrome?
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13 Answers
13
Active
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How to get one value at a time from a generator function in Python?
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157
Yes, or next(gen) in 2.6+.
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Mock HttpContext.Current in Test Init Method
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edited Apr 23 '12 at 10:14
answered Dec 7 '10 at 17:18
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What is the PostgreSQL equivalent for ISNULL()
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edited Jan 14 '12 at 2:28
Erwin Brandstetter
439k9696 gold badges809809 silver badges969969 bronze badges
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How do I use a file grep comparison inside a bash if/else statement?
...elp, but also see man grep:
Exit status is 0 if any line was selected, 1 otherwise;
if any error occurs and -q was not given, the exit status is 2.
if grep --quiet MYSQL_ROLE=master /etc/aws/hosts.conf; then
echo exists
else
echo not found
fi
You may want to use a more specific regex, ...
Accessing an array out of bounds gives no error, why?
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17 Answers
17
Active
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What are 'get' and 'set' in Swift?
...e variable from another object, it looks like this:
myTriangle.perimeter = 100
Which invokes the code in the set{} block:
set {
sideLength = newValue / 3.0
}
And so it's like if the class that's setting the variable had done this:
myTriangle.sideLength = 100/3.0
It's really just for convenien...