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The above topic was one of the topics that our laboratory came up with when we were new. It mainly investigated the knowledge of odd frequency division and even frequency division principles and timing logic such as counters. In combinatorial logic, it only included one out of two data selectors, which was not difficult. For us who had only s ...

1, Data type All data in the computer can be regarded as objects, and variables play the role of pointing to data objects in the program. The data types commonly used in python are divided into basic data types (number, str) and composite data types (list, tuple, dict, set) Basic data type 1.number (numeric) int float (no double) complex ...

1. Basic introduction Linux system is a multi-user and multi task operating system. Any user who wants to use system resources must first apply to the system administrator for an account, and then enter the system as this account. 2. Add user Basic grammar useradd username case Add a user milan. [root@hostName01 ~]# cd /home [root@ho ...

        This week, I mainly brush some dp questions. Finally, if I want to brush according to the topic, I'll start with the backpack. Today, I don't see the question for the first time. I solved a backpack question in the provincial competition last year. I'm still very excited. At least I didn't learn in vain. It's still ...

7-92 sum of special a series (20 points) Given two positive integers a and n that are not more than 9, it is required to write a program to find the sum of a+aa+aaa + +... + aa * a (n a). Input format: Enter positive integers a and n that give no more than 9 in one line. Output format: Output in one line in the format of "s = correspondi ...

1. Background In daily development, delayed task is an unavoidable topic. In order to achieve the purpose of delay, there will be different solutions in different scenarios. The awareness of the advantages and disadvantages of each scheme determines the effectiveness of architecture decision-making. In this article, taking the e-commerce ...

This article was not originally created by the blogger. When the blogger learned the underlying principles of Spring, he felt that this article was very profitable. He read it several times and had different experiences each time, so he wanted to record it through the blog. If there is infringement, it shall be deleted. The core of Spring ...

Heap (priority queue) Time complexity: The time complexity of initializing heap building is O(n) Heap sort rebuild heap O(nlogn) PriorityQueue small top heap Small top heap: the weight of any non leaf node is not greater than the weight of its left and right child nodes Constructor constructor Function introductionPriorityQueue()Create a ...

Use yolov5 to train your own dataset (detailed process) and deploy yolov5 through flash github project address Use yolov5 to train your own data set (detailed process) and deploy it through flash 1. Prepare data set PASCAL VOC In this paper PASCAL VOC extraction code: 07wp Take the dataset as an example. Put the dataset under the project d ...

Several ways of inheritance: 1. Borrow constructor 2. Combination inheritance 3. Prototype inheritance 4. Parasitic inheritance 5. Parasitic combinatorial inheritance 1. Borrow constructor // Define SupTyp constructor function SupType() { this.colors = ['red', 'yellow', 'blue'] } function SubType() { // Inherited SuperType SupTyp ...