报错 ：invalid byte sequence in UTF-8 (ArgumentError)

Question

#encoding: UTF-8require "win32ole"require "Win32API" FindWindowEx = Win32API.new("user32", "FindWindowExA", ["l", "l", "p", "p"], "l") GetWindowText = Win32API.new("user32", "GetWindowTextA", ["L","P","i"], 'i') GetClassName = Win32API.new("user32", "GetClassName", ["L","P","i"], "l") GetWindowTextLength = Win32API.new("user32", "GetWindowTextLength", "L", "I")
# GetWindowText 获取窗口标题 URL_handle = FindWindowEx.call(0, 0, "DV2ControlHost", nil) buf_len = GetWindowTextLength.call(URL_handle) str_a = " " * (buf_len + 1) GetWindowText.call(URL_handle, str_a, str_a.length) puts str_a.delete("\0")

执行后报错：in `delete': invalid byte sequence in UTF-8 (ArgumentError)

Class Name： "DV2ControlHost"
Window Caption： "「开始」菜单"

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Answer 1

使用delete（“\0”） 前 ，先处理下编码 用force_encoding("iso-8859-1")，或者再试下其他编码格式。祝你好运。