Example of text box carriage return submission and prohibition of submission_javascript skills

Copy code The code is as follows:

onblur="if(this.value==''){this.value='Please enter the intended property or customer name or mobile phone number to inquire'};"
onkeypress="if( event.keyCode==13){javascript: _sd();return false;}" title="Please enter the intended property or customer name or mobile phone number to inquire" />

Copy code The code is as follows:

onkeypress="if(event.keyCode==13){javascript: _sd() ;return false;}"

return false ;
Disable form submission