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這篇文章主要介紹了Python如何生成算術(shù)題,具有一定借鑒價(jià)值,感興趣的朋友可以參考下,希望大家閱讀完這篇文章之后大有收獲,下面讓小編帶著大家一起了解一下。
阿姨覺得二元加減太簡(jiǎn)單了,想要三元加減法的算術(shù)題(x + y + z; x + y - z; x - y - z; x - y + z
),因?yàn)榈艿苓€小,只會(huì)100以內(nèi)的加減法,不會(huì)負(fù)數(shù),所以出的算術(shù)題不僅計(jì)算結(jié)果要在[0, 100]
內(nèi),算式中的任何兩位的計(jì)算也要在[0, 100]
內(nèi)。
生成在[1,99]
內(nèi)的隨機(jī)數(shù)x, y, z
,若它們的計(jì)算結(jié)果在[0, 100]
內(nèi),且算式中的任何兩位的計(jì)算也在[0, 100]
內(nèi),就保存在字符串里,作為答案,如"10 + 13 + 9 = 32"
;將字符串存入set
中,因?yàn)镻ython的set
是無序且不重復(fù)的,所以它會(huì)自動(dòng)打亂和去重;把答案寫入文件,寫入文件時(shí)要寫入index(題號(hào))去掉結(jié)果再寫入另一個(gè)文件,作為題目
1.生成隨機(jī)整數(shù):
import random x = random.randint(1, 99) # 生成[1, 99]內(nèi)的整數(shù)
2.set:
s = set() # 初始化要用set() x = 1 s.add(x) # 將x插入s
3.將結(jié)果存入文件
text = "Hello world!" with open(file, 'a') as f: # 追加文本到文件 # 每次輸入前清空文件 f.seek(0) f.truncate() # 將文本寫入文件 f.write(text)
import random def fun1(x, y, z): s = str(x) + " + " + str(y) + " + " + str(z) + " = " + str(x + y + z) return s def fun2(x, y, z): s = str(x) + " + " + str(y) + " - " + str(z) + " = " + str(x + y - z) return s def fun3(x, y, z): s = str(x) + " - " + str(y) + " + " + str(z) + " = " + str(x - y + z) return s def fun4(x, y, z): s = str(x) + " - " + str(y) + " - " + str(z) + " = " + str(x - y - z) return s def generate(num): s = set() while len(s) < num: x = random.randint(1, 99) y = random.randint(1, 99) z = random.randint(1, 99) if ((x + y >= 0 and x + y <= 100) and (y + z >= 0 and y + z <= 100) and (x + z >= 0 and x + z <= 100) and (x + y + z >= 0 and x + y + z <= 100)): s.add(fun1(x, y, z)) if ((x + y >= 0 and x + y <= 100) and (y - z >= 0 and y - z <= 100) and (x - z >= 0 and x - z <= 100) and (x + y - z >= 0 and x + y - z <= 100)): s.add(fun2(x, y, z)) if ((x - y >= 0 and x - y <= 100) and (- y + z >= 0 and - y + z <= 100) and (x + z >= 0 and x + z <= 100) and (x - y + z >= 0 and x - y + z <= 100)): s.add(fun3(x, y, z)) if ((x - y >= 0 and x - y <= 100) and (- y - z >= 0 and - y - z <= 100) and (x - z >= 0 and x - z <= 100) and (x - y - z >= 0 and x - y - z <= 100)): s.add(fun4(x, y, z)) return s def save_in_file(answers, answer_file, question_file): with open(answer_file, 'a') as f: # 每次輸入前清空文件 f.seek(0) f.truncate() cnt = 1 for ans in answers: text = str(cnt) + ") " + ans + '\n' f.write(text) cnt += 1 with open(question_file, 'a') as f: f.seek(0) f.truncate() cnt = 1 for ans in answers: ques = str(cnt) + ") " + ans[: ans.find('=') + 1] + "\n" f.write(ques) cnt += 1 save_in_file(generate(1000), "C:\\Users\\sibyl\\Desktop\\calculation\\answer.txt", "C:\\Users\\sibyl\\Desktop\\calculation\\question.txt")
生成的txt文件:
排版后的word文檔:
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