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1 name = " Ian is very good at\t {st} learning and eager to learn {sm2}." 2 3 print(name.capitalize()) #原本大写改成小写,原本小写改成大写 4 5 print(name.count("a")) #查找里面字符“a“的数量 6 7 print(name.cente... 阅读全文
posted @ 2017-10-31 11:31
Ian_learning
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程序:购物车程序 需求: 阅读全文
posted @ 2017-10-31 10:50
Ian_learning
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以上是常见的用法 2.list的拷贝——注意深浅copy 阅读全文
posted @ 2017-10-31 10:49
Ian_learning
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