尝试将变量写入数据库并保存为csv时，我发现像x = 1.2345这样的简单变量是以这种格式编写的：默认情况下，将{Any，Any}（“x”，1.234）配对到csv文件中。
在某些示例中（如https://www.geeksforgeeks.org/working-with-csv-files-in-julia/），写入数据时不包含类型信息。
下面是我的代码：

using DataFrames
using CSV   

function pushDbVals!(df,names,vals)
    if (length(names)!=length(vals))
       error("length(names)!=length(vals): ", length(names),"!=", length(vals))
    end
    row = []
    for d in vals 
        push!(row,d)
    end
    push!(df,row)
    
end

x = 1.234

dbNames = ["x"]
vals = Dict()
vals["x"] = x

println("x: ", x)

df = DataFrame([ name =>[] for name in dbNames])
pushDbVals!(df,dbNames,vals)
CSV.write("test.csv", df)