Advanced limit-level input usage

1. The dotted box when the cancel button is pressed
Add the attribute value hidefocus or hidefocus = true in input.
2. Read-only text box content
Add the attribute value readonly in input.
3. Prevent text files from being cleared (style content can be referenced as a class)
<Input style = behavior: URL (# default # savehistory); type = text id = opersistinput>
4. Press enter to move the cursor to the next input box.
<Input onkeydown = "If (event. keycode = 13) event. keycode = 9">
5. It can only be Chinese (with flashing)
<Input onkeyup = "value = value. Replace (/[-~] /G, '')" onkeydown = "If (event. keycode = 13) event. keycode = 9">
6. Only numbers are allowed (with flashing)
<Input onkeyup = "value = value. replace (/[^ \ D]/g, '')" onbeforepaste = "clipboardData. setdata ('text', clipboardData. getdata ('text '). replace (/[^ \ D]/g, '')">
7. Only numbers are allowed (no flashing)
<Input style = "ime-mode: Disabled" onkeydown = "If (event. keycode = 13) event. keycode = 9 "onkeypress =" If (event. keycode <48 | event. keycode> 57) event. returnvalue = false ">
8. Only English and numbers can be entered (with flashing)
<Input onkeyup = "value = value. replace (/[\ W]/g, '')" onbeforepaste = "clipboardData. setdata ('text', clipboardData. getdata ('text '). replace (/[^ \ D]/g, '')">
9. shielded Input Method
<Input type = "text" name = "url" style = "ime-mode: Disabled" onkeydown = "If (event. keycode = 13) event. keycode = 9">
10. You can only enter numbers, decimal points, minus (-) characters (no flashing)
<Input onkeypress = "If (event. keycode! = 46 & event. keycode! = 45 & (event. keycode <48 | event. keycode> 57) event. returnvalue = false ">
11. Only two decimal places can be entered, and three decimal places (with flashing)
<Input maxlength = 9 onkeyup = "If (value. match (/^ \ D {3} $/) value = value. replace (value, parseint (value/10); value = value. replace (/\. \ D *\. /g ,'. ') "onkeypress =" If (event. keycode <48 | event. keycode> 57) & event. keycode! = 46 & event. keycode! = 45 | value. match (/^ \ D {3 }$/) | /\. \ D {3} $ /. test (value) {event. returnvalue = false} "id = text_kfxe name = text_kfxe>