// 下划线转换驼峰function toHump(name) {    return name.replace(/\_(\w)/g, function(all, letter){        return letter.toUpperCase();    });}// 驼峰转换下划线function toLine(name) {  return name.replace(/([A-Z])/g,"_$1").toLowerCase();}// 测试let a = 'a_b2_345_c2345';console.log(toHump(a));let b = 'aBdaNf';console.log(toLine(b));