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                ThinkChat2.0新版上線,更智能更精彩,支持會話、畫圖、視頻、閱讀、搜索等,送10W Token,即刻開啟你的AI之旅 廣告
                ``` while True: b = input('請輸入小于20數字:') print('失敗,必須輸入小于20的') ``` ``` a = True while a: b = input('請輸入小于20數字:') if int(b)<20: a = False else: print('失敗,必須輸入小于20的') ``` ``` _MAPPING = (u'零', u'一', u'二', u'三', u'四', u'五', u'六', u'七', u'八', u'九', u'十', u'十一', u'十二', u'十三', u'十四', u'十五', u'十六', u'十七',u'十八', u'十九') def _to_chinese4(num): if num < 20: return _MAPPING[num] a = True while a: b = input('請輸入小于20數字:') if int(b)<20: w = _to_chinese4(int(b)) print(w) a = False else: print('失敗,必須輸入小于20的') ``` ``` f = open('name.txt','a+') print(f) b = f.write(u'又加一個字') print(b) f.close() ``` ``` _MAPPING = (u'零', u'一', u'二', u'三', u'四', u'五', u'六', u'七', u'八', u'九', u'十', u'十一', u'十二', u'十三', u'十四', u'十五', u'十六', u'十七',u'十八', u'十九') def _to_chinese4(num): if num < 20: return _MAPPING[num] list1 = [1,2,4] b = len(list1) a = _to_chinese4(b) print(a) import datetime t = datetime.datetime.now().strftime('%Y年%m月%d日') print(t) print(len(list1)) ```
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