类型不匹配

2009-07-15 09:55:19 82 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

JavaScript中TypeError的类型不匹配问题 JavaScript类型不匹配(TypeError)问题分析与解决方案本文系统梳理了JavaScript开发中常见的类型不匹配错误(TypeError)的五大核心成因：调用非函数对象访问null/undefined属性非数值类型运算修改常量错误构造函数调用文章提供了实用的调试方法： Chrome DevTools断点调试 Node.js命令行调试工具 TypeScript静态检查并给出防御性编程建议：参数类型验证安全类型转换可选链操作符应用通过典型案例分析(如DOM操作、Promis 阅读详情



Function change(str As String) As String

    Dim i As Integer

    Dim tmp As String '未处理的字符串

    Dim rst As String '处理过的16进制字符串

    Dim s_head As String

    Dim s_tail As String

    Dim i_head As Integer

    Dim i_tail As Integer

    tmp = ""

    rst = ""

    s_head = ""

    s_tail = ""

    i_head = InStr(str, "@(")

    i_tail = InStr(str, ")")

    If i_head <> 0 Then

        If i_tail = 0 Then

            MsgBox "打印固定数据格式不正确！"

        Else

            s_head = s_head & Mid(str, 1, i_head - 1)

            s_tail = s_tail & Mid(str, i_tail + 1, Len(str))

            tmp = tmp & Mid(str, i_head + 2, i_tail - 1)

            For i = 1 To Len(tmp) Step 2

                rst = rst & Chr(CInt("&H" & Mid(tmp, i, 2)))

            Next i

            '写入文件的字符串

            change = s_head & rst & s_tail

        End If

    Else

        change = str

    End If

    

End Function