The input element with a type attribute whose value is " number " represents a precise control for setting the element's value to a string representing a number ... ... <看更多>

HTML 5 has a native solution with <input type="number"> (see the specification), but note that browser support varies: Most browsers will only validate the ... ... <看更多>

http://technotip.com/3642/number-input-type-html5/number input type indicates that the input field is ... ... <看更多>

It is also possible to pass any html attribute straight to the input, ... To use the number option on the input, first, tells to Simple Form the place where ... ... <看更多>