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A Python program can handle date and time in several ways. Converting between date formats is a common chore for computers. Python's time and calendar 阅读全文
posted @ 2022-01-27 20:26
emanlee
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Each key is separated from its value by a colon (:), the items are separated by commas, and the whole thing is enclosed in curly braces. An empty dict 阅读全文
posted @ 2022-01-27 20:24
emanlee
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A tuple is a sequence of immutable Python objects. Tuples are sequences, just like lists. The main difference between the tuples and the lists is that 阅读全文
posted @ 2022-01-27 20:23
emanlee
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Strings are amongst the most popular types in Python. We can create them simply by enclosing characters in quotes. Python treats single quotes the sam 阅读全文
posted @ 2022-01-27 20:22
emanlee
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The most basic data structure in Python is the sequence. Each element of a sequence is assigned a number - its position or index. The first index is z 阅读全文
posted @ 2022-01-27 20:22
emanlee
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Number data types store numeric values. They are immutable data types. This means, changing the value of a number data type results in a newly allocat 阅读全文
posted @ 2022-01-27 20:20
emanlee
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In general, statements are executed sequentially − The first statement in a function is executed first, followed by the second, and so on. There may b 阅读全文
posted @ 2022-01-27 20:18
emanlee
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Decision-making is the anticipation of conditions occurring during the execution of a program and specified actions taken according to the conditions. 阅读全文
posted @ 2022-01-27 20:15
emanlee
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Operators are the constructs, which can manipulate the value of operands. Consider the expression 4 + 5 = 9. Here, 4 and 5 are called the operands and 阅读全文
posted @ 2022-01-27 20:12
emanlee
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Variables are nothing but reserved memory locations to store values. It means that when you create a variable, you reserve some space in the memory. B 阅读全文
posted @ 2022-01-27 20:11
emanlee
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