関連ワード:  powershell check first character of string    powershell get first character of string    powershell remove first character of string    powershell compare first character of string    powershell test first character of string    powershell remove first char of string    powershell get only first character of string    powershell get first 3 characters of string    powershell get first 4 characters of string    powershell get first n characters of string  
結果 : powershell check first character of string