2020-01-06

(2020-01-06) learned today:

1. Understand a lot of useful websites, applications or scripts, such as my love crack, vscode, tampermonkey.

2. Start cultivate good habits learned recorded every day, back to their own blog. Multi-Mailbox work

Configuration 3.Java environment variables

step:

1. Go to download jdk, after the installation is good to remember the installation path
   
2. Then this computer - Properties - Advanced System Settings - Environment Variables
   
3. New "the JAVA_HOME" variable "system variables" click "New" and setting parameters (
   variable name input: JAVA_HOME, the variable value of the installation path jdk
   
4. In the "System Variables," we find the path variable, you need to click on "Edit" and then enter the editing interface path variables. (Variable value plus the final surface "; the JAVA_HOME%% \ bin;%% the JAVA_HOME \ JRE \ bin")
   5. The "New in" system in the CLASSPATH variable "variable, click the" New "and set the parameter (variable name input: CLASSPATH variable value, type:;.% JAVA_HOME% \ lib \ dt.jar;% JAVA_HOME% \ lib \ tools.jar;
   ) and then click OK.
   

5. JAVA environment configuration test is successful, the "Start" menu search cmd, then type "java" and "javac", appears in the following figure illustrates the configuration is successful
   

   note:

   This computer - Properties - Advanced System Settings - unanimously selected path name when the path name and environment variable to install their own, or will go wrong.

   4.markdown familiar

   1. Title

6. In the text you want to set as the title preceded by # to represent
7. A # is a title, two # is the second title, and so on. Support six titles.

8. Note: The standard syntax is generally followed by a space to write the # character, seemingly simple book no space is required.

   2. Fonts

9. Bold: bold text to the left and right are two wrap with an asterisk.
10. Italic: Italic text to the left and right respectively, together with a number * package.
11. Bold italics: about to tilt and bold text are wrapped with three asterisk.

12. About to add strikethrough text are wrapped up with two numbers ~

    3. references

    Before the quoted text plus> can be. References can also be nested, such as three plus two >> >>> n th ... looks like you can always add it, but God did not horse with eggs

    4. parting line

    More than three or three - or can *

    5. Pictures

    Pictures to exist locally, then! Press [] (Picture file name .png) format

    6. List

    Unordered list with - + * can be any
    ordered list of numbers add
    nested lists
    a between a lower and more than one can be a blank line on
    

13. abc

    2.abc

    5.python2 coexist with python3

    Step:
    1 and respectively mounted python2 python3
    2. The python2 and are configured to python3 environment variable to
    C: \ Python37 \ the Scripts; C: \ Python37;
    C: \ Python27; C: \ Python27 \ the Scripts; (according to their mounting directory path)
    3. force individually reinstall
    python2 -m pip install --upgrade pip --force- reinstall

Feelings and experiences:

Today exposed to a lot of new things, as if to open up a whole new world, later to be used to cultivate good record, every day looking forward to new harvest