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javascript Calculator Season 2 plus output and calculation interface

2018-05-07 16:00:33

The calculator function also needs to be further improved, and the output and calculation function interface are gradually implemented one by one

Methods/Steps
1

html adds layer to display calculation results

2

css files add styling and positioning

3

The browser displays the calculation result display layer

4

html code to add, subtract, multiply and divide function keys

5

This article illegal climbing is taken from experience

6

html pages now display several commonly used function keys for computation

7

Add an equal sign to your html code

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The css code defines the equal sign position

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The browser displays the equal sign

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When adding a symbol for each point calculation, the box can be displayed in real time. This box should be a little larger, because the calculation is sometimes long, and many calculators on the market have too small a box. When I was doing accounting, sometimes I would calculate the numbers of dozens of pens and add them, and often the calculator display was not enough

11

html added to show the calculation process layer

12

css code increases the position and style of the calculation process

13

The browser can now display the calculation process display box

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