大约有 30,000 项符合查询结果（耗时：0.0342秒） [XML]
When to choose checked and unchecked exceptions
...r control has caused the operation to fail. For example, you try reading a file but someone deletes it between the time you check if it exists and the time the read operation begins. By declaring a checked exception, you are telling the caller to anticipate this failure.
Reasonable to recover from: ...
Schrödingers MySQL table: exists, yet it does not
...
I've seen this issue when the data file is missing in the data directory but the table definition file exists or vise-versa. If you're using innodb_file_per_table, check the data directory to make sure you have both an .frm file and .ibd file for the table in ...
UnicodeDecodeError when reading CSV file in Pandas with Python
I'm running a program which is processing 30,000 similar files. A random number of them are stopping and producing this error...
...
Pelican 3.3 pelican-quickstart error “ValueError: unknown locale: UTF-8”
...olution posted here or here. Basically, add some lines to your ~/.bash_profile:
export LC_ALL=en_US.UTF-8
export LANG=en_US.UTF-8
There is an outstanding bug report related to this issue. It appears that Python makes some assumptions about the format of locale names that aren't universally vali...
Maven equivalent for python [closed]
.../3.2/diveintopython3/html/packaging.html
In short, you will have setup.py file, which has dependency and script compilation/installation information, and you can build eggs, dist tarballs, binary tarballs, etc with it.
shar...
ORACLE 启动提示 内存不足 OUTOF MEMORY - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...max = 2147483648
kernel.shmmni = 4096
kernel.sem = 250 32000 100 128
fs.file-max = 65536
net.ipv4.ip_local_port_range = 1024 65000
net.core.rmem_default=262144
net.core.rmem_max=262144
net.core.wmem_default=262144
net.core.wmem_max=262144
在ORACEL 用户下
输入 su - root
敲...
Linux MySql编译安装 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...
-DWITH_MEMORY_STORAGE_ENGINE=1 \
-DWITH_READLINE=1 \
-DENABLED_LOCAL_INFILE=1 \
-DMYSQL_DATADIR=/var/mysql/data \
-DMYSQL_USER=mysql
make -j8
make install
#改变所有者及控制权限
chmod +w /usr/local/mysql
chown -R mysql:mysql /usr/local/mysql
mkdir -p /var/mysql/
mkdir -p /va...
Do zombies exist … in .NET?
...;
Console.ReadLine();
}
private static void Target()
{
using (var file = File.Open("test.txt", FileMode.OpenOrCreate))
{
ExitThread(0);
}
}
This program starts a thread Target which opens a file and then immediately kills itself using ExitThread. The resulting zombie thre...
Node.js check if file exists
How do i check the existence of a file ?
17 Answers
17
...
Undo working copy modifications of one file in Git?
After the last commit, I modified a bunch of files in my working copy, but I want to undo the changes to one of those files, as in reset it to the same state as the most recent commit.
...