2, spelling test www.pintia.cn brush king will brush extending homework
3, blog CSDN written notes, the learning, error
4, write their own code, ask more programs: a series of instructions, and the man-machine communication programming language to machine language of 0 1
Assembly language mnemonics AND high-level language compiler (interpreter) - - machine language c - process oriented language program=data structure + algorithm
Data structure, data type, data algorithm: the relationship between the methods and steps to solve the problem, the algorithm of the same problem has a lot of, on the basis of understanding remember
Embedded programming soft combination
Everything can be connected to the Internet
Computer networking Java - object oriented language (closer to human habits)
Language: communication tool
Hardware: see, touch,
Software: - system software, application software
Storage structure: memory (working memory, cannot persist data) CRT (hard drive, usb flash drive, cd-rom, persisted data)
Bytes (byte) : the smallest unit of information stored, 1 byte=8 bits
Bits (bite) : a binary, can only be stored 0 or 1 word length (a CPU can process data length)
Data: information symbolization of 1 + 2 a
Data types -- -- -- -- -- - different data can participate in different operations, distribution of different types of different memory space
All the data are divided into constant (the program is running, the same amount) and variables (program is running, the amount of change) two
Type
Constant
The integer is an integer, 1, 2,
There must be a decimal floating point, namely, the decimal 1.2, 3.4
Said method has two kinds: common, index form e3 (e3) 3.4, 3.4 e before and after must be digital, and after the number must be an integer type character: single quotation marks around a single character 'a' in addition to the ordinary character constants, and escape character '\ n' representative enter
Identifier: name, with a letter, underscore, of Numbers, not begin with digital
Divided into keyword, user-defined identifier
Variable
Int integer (4 bytes) short long (said number is different, the range of bytes) of the
Floating-point
character
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