var aaa = [
    {        "Id":"3972679ef2c04151972b376dd88e6413",        "T_CourseId":"7a4494aae1804d3e94094583249750fe",        "CourseName":"英语",        "Code":"english"
    },
    {        "Id":"5665d803e7994b26a56c6287d12c2090",        "T_CourseId":"75761ad2ce23498c9f9db134ab844aec",        "CourseName":"药物化学",        "Code":"ywhx"
    }
]   var bbb= JSON.parse(JSON.stringify(aaa).replace(/CourseName/g,"title"));
    console.log(bbb)