C # simulate keyboard operations -- SendKey (), SendKeys ()

Today is an excellent offer! When simulating a keyboard operation, you can hear it. Hey, isn't it? /...
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The following two syntaxes are used to simulate keyboard input.
SendKeys. Send (string keys); // simulate Chinese character (text) Input
SendKeys. SendWait (string keys); // simulate key input

Let's take a look at the usage of the two syntaxes! Paste the code later to see if you can understand it /...

(1) Each key is represented by one or more characters. To specify a single keyboard character, you must press the character key. For example, to represent the letter A, you can use "A" as the string. To indicate multiple characters, you must add another character directly after the character. For example, to indicate a, B, and C, "ABC" can be used as A string.
 

(2) For SendKeys, the plus sign (+), the insert character (^), the percentage sign (%), and the upper line (~) And parentheses () have special significance. To specify any of the preceding characters, place them in braces. For example, to specify a positive number, it can be represented by {+. Square brackets ([]) do not have special significance for SendKeys, but must be placed in braces. Square brackets are of special significance in other applications. When Dynamic Data Exchange (DDE) occurs, it may be of great significance. To specify the braces, use {}.
 

(3) Use the following code to specify characters that are not displayed when you press the button, such as ENTER or TAB, and keys that represent actions rather than characters:

Buttons	Code
BACKSPACE	{BACKSPACE}, {BS}, or {BKSP}
BREAK	{BREAK}
CAPS LOCK	{CAPSLOCK}
DEL or DELETE	{DELETE} or {DEL}
DOWN ARROW	{DOWN}
END	{END}
ENTER	{ENTER} Or ~
ESC	{ESC}
HELP	{HELP}
HOME	{HOME}
INS or INSERT	{INSERT} or {INS}
LEFT ARROW	{LEFT}
NUM LOCK	{NUMLOCK}
PAGE DOWN	{PGDN}
PAGE UP	{PGUP}
PRINT SCREEN	{PRTSC}
RIGHT ARROW	{RIGHT}
SCROLL LOCK	{SCROLLLOCK}
TAB	{TAB}
UP ARROW	{UP}
F1	{F1}
F2	{F2}
F3	{F3}
F4	{F4}
F5	{F5}
F6	{F6}
F7	{F7}
F8	{F8}
F9	{F9}
F10	{F10}
F11	{F1}
F12	{F12}
F13	{F13}
F14	{F14}
F15	{F15}
F16	{F16}

 

(4) SHIFT, CTRL, ALT, and other key combinations, one or more codes can be placed in front of these key codes. These codes are listed as follows:

Buttons	Code
Shift	+
Ctrl	^
Alt	%

 

(5) Use SendKeys. Send ("") to input Chinese characters ");

/* ---------------- The following is the case code -----------------*/

    button1_Click(            SendKeys.SendWait(