2. Master the basic control structure of C language. //Sequence, judgment, loop
3. Master the definition of arrays, the reference of array elements, the initialization of arrays, and the library functions related to strings.
5. Master the definition of structure type variables, the reference of structure variables, the initialization method of structure variables, the definition and initialization of structure arrays and the application of structure arrays, the definition and usage of community variables, and the enumeration The general concept, definition format and usage method of the type.
6. Grasp the basic concepts of addresses and pointers , focus on how to use pointers to process arrays, strings, and structures, and master the basic concepts and use of function pointers; // the power of pointers is more reflected in the data structure part, joint algorithms Give full play to the shocking influence.
7. Understand the use of bit operators, and be able to use them to deal with specific problems; understand the concept and usage rules of bit segments.
8. Grasp the definition of FILE and library functions for various operations on the file.