#The three basic structures of C language structured programming are sequential structure, selection structure and loop structure.
Sequential structure programming is the simplest. Just write the corresponding statements in the order of solving the problem. Its execution order is top to bottom and executed in sequence.
The selection structure is used to judge given conditions, judge certain conditions based on the results of the judgment, and control the flow of the program based on the results of the judgment.
The loop structure can reduce the workload of repeated writing of the source program and is used to describe the problem of repeatedly executing a certain algorithm. This is the program structure that best utilizes the computer's expertise in programming. The loop structure can be seen as a combination of a conditional statement and a turnaround statement.
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