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一个简单的if语句
- a = int(input('请输入PM2.5的值:'))
- if 0 < a <= 35:
- print('优')
- elif 35 < a <= 75:
- print('良')
- elif 75 < a <= 115:
- print('轻度污染')
- elif 115 < a <= 150:
- print('中度污染')
- elif 150 < a <= 250:
- print('重度污染')
- elif a > 250:
- print('严重污染')
-
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