xiaoshuo-ss-sfff-fe 變爲駝峯xiaoshuoSsSfffFe
function aA(str){
var str = str.split('')
for(var i in str){
if(str[i]=='-'){
str[Number(i)+1] = str[Number(i)+1].toString().toUpperCase()
str.splice(i,1)
}
}
return str.join('')
}
console.log(aA('xiaoshuo-ss-sfff-fe'))
// xiaoshuoSsSfffFe