Jquery selects radio

Script. js {code...} index. php {code...} cannot select value & #039; 0 & #039; why? script.js

$ ("Input: radio [name = pdiyong]"). click (function () {pay_sum = parseFloat ($ ("# pay-sum "). text (); if ($ ("input: radio [name = pdiyong]: checked "). data ('par')> 0) {if (pay_sum> 30) {$ ("input: radio [name = prop]"). attr ('Disabled ', 'Disabled');} else {$ ("input: radio [name = 'pdidong '] [data-par = '0']"). attr ("checked", true); $ ("input: radio [name = 'pdiyong ']"). attr ('Disabled ', 'Disabled'); alert ("the actual payment does not exceed 30 RMB, so you cannot use the coupon! ") }} Else {$ (" input: radio [name = prop] "). removeAttr ('Disabled ');}})

index.php

  
   
Coupon(You must pay more than RMB 30 to use it. 5 RMB each time)
   
  
 
   
Do not use coupons
  
   
Name: {$ item. name} amount: {$ item. value}
  
  
   

  
  
   
Coupon(You must pay more than ¥ 10 to use it. Not accumulative)
   
  
 
   
Do not use coupons
  
   
Name: {$ item. name} amount: {$ item. value}
  
  
   

  

No wayvalue='0'Is it true?

Reply content:

script.js

$ ("Input: radio [name = pdiyong]"). click (function () {pay_sum = parseFloat ($ ("# pay-sum "). text (); if ($ ("input: radio [name = pdiyong]: checked "). data ('par')> 0) {if (pay_sum> 30) {$ ("input: radio [name = prop]"). attr ('Disabled ', 'Disabled');} else {$ ("input: radio [name = 'pdidong '] [data-par = '0']"). attr ("checked", true); $ ("input: radio [name = 'pdiyong ']"). attr ('Disabled ', 'Disabled'); alert ("the actual payment does not exceed 30 RMB, so you cannot use the coupon! ") }} Else {$ (" input: radio [name = prop] "). removeAttr ('Disabled ');}})

index.php

  
   
Coupon(You must pay more than RMB 30 to use it. 5 RMB each time)
   
  
 
   
Do not use coupons
  
   
Name: {$ item. name} amount: {$ item. value}
  
  
   

  
  
   
Coupon(You must pay more than ¥ 10 to use it. Not accumulative)
   
  
 
   
Do not use coupons
  
   
Name: {$ item. name} amount: {$ item. value}
  
  
   

  

No wayvalue='0'Is it true?

$ ("Input: radio [name = 'pdidong '] [data-par = '0']"). attr ("checked", true );
With the prop () method, google