Give a value to a, such as a=2, where "=" is not a symbol, but an assignment. Give A a value of 2. For example, A represents a variable in programming and a memory space. a=2 is equivalent to sending 2 into the space represented by A. That is to say, A can basically be regarded as a result of 2.

The function of the processing box: write the assignment, calculation and formula needed for data processing in the algorithm in different processing boxes to process data; In the program block diagram, the basic program box with assignment and calculation functions is the processing box (execution box).

Assignment is the process of assigning a value to a variable, which is called assignment. A statement that assigns a value to a variable is called an assignment statement. Each programming language has its own assignment statement, and assignment statements also have different types. Assigned "values" can be numbers, strings and expressions.

In computer programming language, the assignment of variables is realized by certain assignment statements, and the statements that give variables a certain value are called assignment statements. An assignment statement is a statement used to express a specific definite value for a variable. In the algorithm statement, the assignment statement is the most basic statement.

A statement that assigns a value to a variable is called an assignment statement. Each programming language has its own assignment statement, and assignment statements also have different types. Assigned "values" can be numbers, strings and expressions. Note that many languages use "equal sign" (that is, "=") as the assignment number, so it may be different from the usual understanding, so pay attention to it when using it.