[已解决]做题啦做题啦！！python

Cria · 发表于 2021-12-28 15:20:05

1. 请编写一个类 Int，该类有一个成员属性 num，一个成员方法 getSum()，该方法计算属性 num 各个数位上的数字之和，返回指定输出格式的字符串对象，如输入“123”，输出为：“123 的各个数位上的数字之和为 6”，还有一个构造方法__init__()，用来传入一个 3 位正整数，初始化成员属性 num。请编写代码实现类 Int 并进行调用。

2. 如下代码生成一组学生的 Python 课程成绩，请编写函数 get_scores_info(scores)，完成对 scores 列表中[0，60)、[60, 80)、[80, 90)、[90, 100]区间成绩的占比（百分比）的统计，并按照指定格式输出，输出格式形如：[0,60)占比为 15%。 import random scores = [random.randint(0,100) for i in range(200)]

3. 有如下内容：
#name,age,score tom,12,86
Lee,15,99
Lucy,11,58
Joseph,19,56
请编写代码完成以下功能：
1）将上述内容写入文件 e:\record.txt；
2）将文件中 score 低于 60 分记录的 name 输出；
3）计算文件中所有记录的 score 之和并输出。

最佳答案

月排行榜 / 总排行榜

qq1151985918

2021-12-28 15:20:06

# 1
class Int:
def __init__(self, num):
self.num = num
def getSum(self):
s = sum(map(int, self.num))
prompt = f"{self.num}的各个数位上的数字之和为{s}"
return prompt
if __name__ == "__main__":
i = Int("123")
print(i.getSum())
# 2
import random
scores = [random.randint(0,100) for i in range(200)]
def get_scores_info(scores):
p0_60 = len([i for i in scores if i in range(0, 60)]) / len(scores)
p60_80 = len([i for i in scores if i in range(60, 80)]) / len(scores)
p80_90 = len([i for i in scores if i in range(80, 90)]) / len(scores)
p90_100 = len([i for i in scores if i in range(90, 101)]) / len(scores)
kinds = ("[0, 60)", "[60, 80)", "[80, 90)", "[90, 100]")
nums = (p0_60, p60_80, p80_90, p90_100)
s_dict = dict(zip(kinds, nums))
for i in kinds:
print(f"{i}占比为{s_dict[i] * 100}%")
if __name__ == "__main__":
get_scores_info(scores)
# 3
text = """name,age,score
tom,12,86
Lee,15,99
Lucy,11,58
Joseph,19,56"""
with open(r"e:\record.txt", "w", encoding="utf-8") as f:
f.write(text)
with open(r"e:\record.txt", "r", encoding="utf-8") as f:
data = f.read().splitlines()[1:]
sum_score = 0
for l in data:
r = l.split(",")
s = float(r[-1])
sum_score += s
if s < 60:
print(r[0])
print(sum_score)

复制代码

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qq1151985918 · 发表于 2021-12-28 15:20:06

这个最佳答案由 qq1151985918 给出，感谢 qq1151985918 的回答。

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# 1
class Int:
def __init__(self, num):
self.num = num
def getSum(self):
s = sum(map(int, self.num))
prompt = f"{self.num}的各个数位上的数字之和为{s}"
return prompt
if __name__ == "__main__":
i = Int("123")
print(i.getSum())
# 2
import random
scores = [random.randint(0,100) for i in range(200)]
def get_scores_info(scores):
p0_60 = len([i for i in scores if i in range(0, 60)]) / len(scores)
p60_80 = len([i for i in scores if i in range(60, 80)]) / len(scores)
p80_90 = len([i for i in scores if i in range(80, 90)]) / len(scores)
p90_100 = len([i for i in scores if i in range(90, 101)]) / len(scores)
kinds = ("[0, 60)", "[60, 80)", "[80, 90)", "[90, 100]")
nums = (p0_60, p60_80, p80_90, p90_100)
s_dict = dict(zip(kinds, nums))
for i in kinds:
print(f"{i}占比为{s_dict[i] * 100}%")
if __name__ == "__main__":
get_scores_info(scores)
# 3
text = """name,age,score
tom,12,86
Lee,15,99
Lucy,11,58
Joseph,19,56"""
with open(r"e:\record.txt", "w", encoding="utf-8") as f:
f.write(text)
with open(r"e:\record.txt", "r", encoding="utf-8") as f:
data = f.read().splitlines()[1:]
sum_score = 0
for l in data:
r = l.split(",")
s = float(r[-1])
sum_score += s
if s < 60:
print(r[0])
print(sum_score)

复制代码

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[已解决]做题啦做题啦！！python

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