Used in the design of the questionnaire form, in order to reduce the operational users, the use of the selection box is a good idea, in the html <input> marker in the box, there are two options, that is, single-box and the box, the difference between the two is the radio box users can only choose one option, and the options in the box users can choose a number of arbitrary, and even the entire election.    Look at this example: 

  Here is the source code for this example, the code in terms of the parameters settings: 

  <form Name="form1"> 
  Do you like to travel?    Please select: <br> 
  <input Type="radio" name="radiobutton" value="radiobutton" checked> like 
  <input Type="radio" name="radiobutton" value="radiobutton"> do not like 
  <input Type="radio" name="radiobutton" value="radiobutton"> indifferent <br> 
<br>
  Those interested in your campaign, please select: <br> 
  <input Type="checkbox" name="checkbox1" value="checkbox"> running 
  <input Type="checkbox" name="checkbox2" value="checkbox"> play 
  <input Type="checkbox" name="checkbox3" value="checkbox"> climbers 
  <input Type="checkbox" name="checkbox4" value="checkbox"> Aerobics <br> 
  </ Form> 

  From the above we can see that the source code, as long as the production of single-box marked <input> type parameter settings for type = "radio" on the trip, while the box only to produce <input> marked for the type parameter settings type = "checkbox" on the trip.    As for the actual choice of using that frame, according to the actual need.    If only there is a choice of users on a single box, as is the case in "Do you like to travel?" This issue, users could only be an option, so a single box; if it allows users to have a range of options the contents of the box is used, such as in the case of the "Movement for those interested in you?" this issue, because a person's interests may be multi-faceted, so using the box. 

  In "input> markers set parameters checked, the box has been selected by default.    As is the case of a single-box ( "like" Below that single box) selected to the default settings, allowing users to choose if "like", it would no longer be elected, of course, if the user to choose "do not like", as long as the click the "do not like" under the single-box, and the default value is automatically cancelled.    Use the same method can also be a box to the default settings selected.    However, the default box chosen not abuse Otherwise, it will cause resentment users.