Basic knowledge of C language (i.)

It must be clear on the whole:

1) program structure is three kinds: sequential structure, selection structure (branch structure), cyclic structure.

2) Read the program from the main () entrance , and then read from the top of the sequence (the loop to do the loop, hit the choice to do the choice), there is only one main function .

3) The computer's data is stored in a binary form in a computer. The location where the data is stored is his address.

4) bit is a bit and refers to 0 or 1. Byte refers to a byte, a byte = eight bits.

The concept is often tested:

1, compilation preprocessing is not a part of C language, does not occupy the running time, do not add semicolons. C language compiled programs are called source programs, which are stored in a text file in ASCII values.

Preprocessing command, must not appear semicolon.

3, each C language program in the main function is there and only one.

4. Functions can no longer be defined in a function.

5, algorithm: Can not input, but must have output.

6. Break can be used for looping structures and switch statements.

7, the comma operator is the lowest level, the value of the second-to-last assignment.

Basic knowledge of C language (i.)