関連ワード:  powershell get first three characters string    powershell get first 3 characters of string    powershell select first 3 characters of string    powershell get first 3 letter of string    powershell string first 3 characters    powershell get first 2 characters of string    powershell get first 4 characters of string  
結果 : powershell get first three characters string