関連ワード:  python find index of substring in string    python find indices of substring in string    python find position of substring in string    python find all index of substring in string    python find first index of substring in string    python find last index of substring in string    python find all indices of substring in string    python find index of multiple substrings in string    python get position of substring in string    python find index of substring in list of strings  
結果 : python find index of substring in string