Revealing the practical functions of PyCharm: easily maintain code through batch comments

PyCharm is a very popular Python integrated development environment (IDE). It provides developers with many practical features that can help us write and maintain code more efficiently. This article will reveal a very practical feature in PyCharm - batch comments, which can make our code maintenance easier.

During the development process, we often need to comment out some code in order to test or temporarily block certain functions. If you manually comment out these codes line by line, it will undoubtedly be very tedious and error-prone. PyCharm provides a simple way to comment code in batches, allowing us to comment or uncomment multiple lines of code with one click, which greatly improves our development efficiency.

The following is an example to illustrate how to use PyCharm's batch comment function.

Suppose we have a Python script named "example.py" with the following code:

# 第一行注释
print("Hello, World!")  # 第二行注释
# 第三行注释
print("This is an example.")  # 第四行注释

We want to batch comment out the first and third lines of code. In PyCharm, we only need to select the lines of code to be commented, and then press "Ctrl /" (or "⌘ /" on Mac). PyCharm will automatically add a "#" symbol in front of the selected lines to represent these lines. is commented code. The commented code is as follows:

# 第一行注释
# print("Hello, World!")  # 第二行注释
# 第三行注释
print("This is an example.")  # 第四行注释

Similarly, to uncomment already commented lines of code, we only need to select these lines and press "Ctrl /" again (or "⌘ /" on Mac "), PyCharm will automatically remove the "#" symbol before the selected line to achieve the effect of uncommenting.

Using the batch comment function, we can quickly and easily comment or uncomment multiple lines of code. This is very useful for us to conduct code debugging and functional testing. When we need to debug a specific function or test other functions, we only need to select the corresponding code block for comment, and we can block these codes without deleting them line by line or copying them to other files. When we don't need to comment these codes, we can uncomment them with one click and restore the original code.

In addition to using "Ctrl /" to make batch comments, PyCharm also provides some other comment-related shortcut keys to facilitate more flexible operations. For example, "Ctrl Shift /" can comment out the selected block-level code, and "Ctrl Shift " can uncomment the selected block-level code.

In summary, PyCharm’s batch comment function provides us with great convenience in code maintenance. It can help us comment and uncomment multiple lines of code quickly and easily, enabling efficient code debugging and functional testing. Mastering this function will undoubtedly make our Python development easier and more efficient.

I hope this article will help everyone understand PyCharm's batch annotation function. If you haven't tried this feature yet, you might as well give it a try and enjoy the convenience it brings in actual development!

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