从类型“String()”到类型“String”的转换无效。

[fucking_asshole]

出现这个错误提示是什麽原因

[无涯大者]

2楼所言极是，数组也可以看成是字符串 他们之间是可以相互转换的. Join转换字符串，格式化字符串！

[tayirvb]

String() 是数组 String 是字符串

[soothbug]

楼主ID亮瞎眼

[Justin-Liu]

类型不一样无法转换

[时光优雅]

同意楼上的，类型不一样

[刚学]

string()表示的为一串字符型数组，而string表示为字符串类型，当然不能转换了。 现举一个VB.net的例子供参考（double()与String之间的操作）： '获得两点的中点 Public Function GetMidPt(ByVal pt1 As Object, ByVal pt2 As Object) As Object Dim ptMid(2) As Double Dim x1, y1, x2, y2, z1, z2 As Double x1 = pt1(0) : x2 = pt2(0) y1 = pt1(1) : y2 = pt2(1) z1 = 0 : z2 = 0 ptMid(0) = (x1 + x2) / 2 ptMid(1) = (y1 + y2) / 2 ptMid(2) = 0 GetMidPt = ptMid End Function ‘计算线段ＡＢ的中点坐标 private sub m_Mide() Dim pa(2) , pb(2) as double pa(0) = 10 : pa(1) = 30 : pa(2) = 0 pb(0) = 30 : pb(1) = 70 : pb(2) = 0 Dim pp() As Double = Nothing pp = GetMidPt(pa, pb) Dim Xm,Ym As Double Xm = pp(0) '线段AB中点M的X坐标 Ym = pp(1) '线段AB中点M的Y坐标 End sub