fix input bug
fix input bug

neurotoxinvx/better-scroll,ustbhuangyi/better-scroll,neurotoxinvx/better-scroll,TotooriaHyperion/better-scroll,ustbhuangyi/better-scroll,ustbhuangyi/better-scroll,TotooriaHyperion/better-scroll,TotooriaHyperion/better-scroll,neurotoxinvx/better-scroll,ustbhuangyi/better-scroll