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一边看视频,一边打代码。在不断地试错。感觉还不错。。了解了很多。。- >>> a = 5
- >>> a+=5
- >>> a
- 10
- >>> a++
- SyntaxError: invalid syntax
- >>> b = 6
- >>> b -= 10
- >>> c
- Traceback (most recent call last):
- File "<pyshell#6>", line 1, in <module>
- c
- NameError: name 'c' is not defined
- >>> b
- -4
- >>> a = b = c = d = 10
- >>> a += b
- >>> b -= c
- >>> c *= d
- >>> d /= a
- >>> print(a,b,c,d)
- 20 0 100 0.5
- >>> 2.5 //= 2
- SyntaxError: can't assign to literal
- >>> 2.5 // 2
- 1.0
- >>> 10 % 3
- 1
- >>> 10 %= 3
- SyntaxError: can't assign to literal
- >>> 3 ** 5
- 243
- >>> 2 * 3 ** 2
- 18
- >>> (-3) ** 2
- 9
- >>> -3 ** 2
- -9
- >>> 3 ** -2
- 0.1111111111111111
- >>> 3 ** (-2)
- 0.1111111111111111
- >>> not 0.5
- False
- >>> 3 < 4 < 1
- False
- >>> 3 < 4 <= 1
- False
- >>> str1 = "not 的优先级比 and 高, and 的优先级比 or 高"
- >>> print(str1)
- SyntaxError: invalid character in identifier
- >>> print(str1)
- not 的优先级比 and 高, and 的优先级比 or 高
- >>>
复制代码
还需要继续努力的学习, |
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