11 lines
368 B
Markdown
11 lines
368 B
Markdown
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# births
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题目1:读取"births.csv"文件(births美国出生人口统计表),读取到适当数据结构中,并输出。(代码量30-50行)
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题目2:完成如下表格 (60-100行)
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gender F M ALL F-M
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decade
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1960 12349384 12334455 236.......... -200
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1970 12334555 13454545
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1980 ........ .........
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......
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ALL 10000000000 100000000000 20000000000
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