### 什么是"上下文管理器"

"上下文管理器"是你可以在 `with` 语句中使用的任何Python对象。

例如，<a href="https://docs.python.org/zh-cn/3/tutorial/inputoutput.html#reading-and-writing-files" class="external-link" target="_blank">你可以使用`with`读取文件</a>：

```Python
with open("./somefile.txt") as f:
    contents = f.read()
    print(contents)
```

在底层，`open("./somefile.txt")`创建了一个被称为"上下文管理器"的对象。

当 `with` 代码块结束时，它会确保关闭文件，即使发生了异常也是如此。

Ben Leggett <******@****.***> 1716316321 -0400

Ben Leggett <******@****.***> 1722537494 -0400

Xiaopeng Han <******@****.***> 1686841337 +0800

Shubhendu <******@****.***> 1726591546 +0530

Russ Cox <******@****.***> 1410149331 -0400

//# sourceMappingURL=moment-with-locales.min.js.map...

if [ "${SVCACCT_COUNT_2}" -ne 2 ]; then
	echo "BUG: Expected svcacct count for 'uid=dillon,ou=people,ou=swengg,dc=min,dc=io': 2. Found: ${SVCACCT_COUNT_2}"
	exit 1
fi

# Kill MinIO and LDAP to start afresh with missing groups/DN
pkill minio
docker rm -f $(docker ps -aq)
rm -rf /tmp/ldap{1..4}

# Deploy the LDAP config witg missing groups/DN

Xiaopeng Han <******@****.***> 1686841337 +0800

# sleep for replication to complete
sleep 30

# Create bucket in source cluster
echo "Create bucket in source MinIO instance"
./mc mb minio1/test-bucket --insecure

# Load objects to source site with checksum header
echo "Loading objects to source MinIO instance"
OBJ_CHKSUM=$(openssl dgst -sha256 -binary </tmp/data/obj | base64)