添加了 powershell 5 兼容

PowerShell/Microsoft.PowerShell_profile.ps1

@@ -5,7 +5,6 @@ Import-Module PSReadLine
 
 # 设置 PS readline
 Set-PSReadLineOption -EditMode Windows
-Set-PSReadLineOption -PredictionSource HistoryAndPlugin
 Set-PSReadLineOption -PredictionViewStyle ListView
 Set-PSReadLineOption -BellStyle None
 # 设置 Tab 键补全
@@ -19,6 +18,14 @@ Set-PSReadLineKeyHandler -Key UpArrow -Function HistorySearchBackward
 # 设置向下键为前向搜索历史纪录
 Set-PSReadLineKeyHandler -Key DownArrow -Function HistorySearchForward
 
+# 判断 PowerShell 版本
+if ($PSVersionTable.PSVersion.Major -lt 7) {
+    Set-PSReadLineOption -PredictionSource History
+}
+else {
+    Set-PSReadLineOption -PredictionSource HistoryAndPlugin
+}
+
 function pythons {
     (8, 9, 10, 11, 12) | ForEach-Object {
         &"python3.$_ $args"