PyCharm reveals tips for quickly implementing code annotations

Quickly implement code comments: Revealing the secrets of comment techniques in PyCharm

When writing programs, good comments are very important, it can help others better Understanding the function and logic of the code will also make it easier for you to read and maintain the code in the future. Comments not only include explanations of the code, but can also record the work to be done next, solutions to problems, optimization ideas, etc.

PyCharm is a very popular Python integrated development environment (IDE). It provides many techniques for quickly implementing code annotation. Some common annotation techniques will be introduced below and demonstrated through specific code examples.

1. Add function comments

In PyCharm, you can quickly add comments to functions through the shortcut key Ctrl Q. When the cursor is over the function name, press Ctrl Q, and PyCharm will automatically generate the function definition and parameter information, and allow you to add more detailed instructions in comments. The following is an example:

def add(a, b):
    """
    求两个数的和
    :param a: 第一个数
    :param b: 第二个数
    :return: 两个数的和
    """
    return a + b

After such comments are added, others can understand the function and usage of this function by viewing the function comments.

2. Quickly generate documentation comments

PyCharm also provides the shortcut key Ctrl Shift ALT D to quickly generate documentation comments. When the cursor is at the function name, press the shortcut key and PyCharm will automatically add a document comment template. You only need to fill in the specific information as needed. Here is an example:

def add(a, b):
    """
    求两个数的和
    :param a: 第一个数
    :param b: 第二个数
    :return: 两个数的和
    :rtype: int
    """
    return a + b

Use documentation comments to describe a function's functionality, parameters, and return value types in more detail.

3. Quickly comment/uncomment code blocks

In PyCharm, you can use Ctrl / to quickly comment or uncomment code blocks. After selecting the code block to be commented, press Ctrl /, PyCharm will automatically add / in front of each line of code to comment out the code, and press Ctrl / again to cancel the comment.

# 下面是一个示例代码块
# for i in range(10):
#     print(i)

4. Add single-line comments

PyCharm provides Ctrl/shortcut keys to add single-line comments. After selecting the line to be commented, press Ctrl /, and PyCharm will automatically add # at the beginning of the line to implement the comment. Pressing Ctrl/ again will cancel the comment.

# 下面是一个示例的单行注释
# print("Hello, World!")

Through these techniques, we can help us add code comments quickly and accurately, improving code readability and maintainability. When writing a program, we should develop good comment habits and combine it with the comment function provided by PyCharm to better record the logic and functions of the code to facilitate the understanding and use of ourselves and others.

To sum up, the commenting skills in PyCharm include adding function comments, quickly generating documentation comments, quickly commenting/uncommenting code blocks, adding single-line comments, etc. I hope these tips can help you better comment your code and improve its readability and maintainability.

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