#方法一:利用集合去重 list_1=[10,1,2,20,10,3,2,1,15,20,44,56,3,2,1]deffunc1(list_1):"""利用集合去重"""returnlist(set(list_1))print('去重后的列表:',func1(list_1))#[1,2,3,10,44,15,20,56]#方法二:用for循环'''用i遍历list,如果不在新列表中,则添加
文件名,不能与标准库冲突。 Python3的关键字有:and, as, assert, break, class, continue, def, del, elif,else, except, False, finally, for, from, global, if, import, in, is, lambda,None, nonlocal, not, or, pass, raise, return, True, try, while, with, yield 错误: 7."="当做“=...
You can specify a stride跨度—either positive or negative: >>> a[0:6:2] ['foo', 'baz', 'quux'] >>> a[1:6:2] ['bar', 'qux', 'corge'] >>> a[6:0:-2] ['corge', 'qux', 'bar'] The syntax for reversing a list逆序 works the same way it does for strings: >...
For those who do not already have an editor of choice, the Kate editor that was demonstrated in Chapter 1 has a graphical user interface (GUI) and is simple to use. In addition to having syntax highlighting, Kate handles automatic indentation, making it easier to avoid whitespace ...
Here, you will learn the basic syntax of Python 3. Display Output The print() funtion in Python displays an output to a console or to the text stream file. You can pass any type of data to the print() function to be displayed on the console. ...
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iredis - Redis CLI with autocompletion and syntax highlighting. litecli - SQLite CLI with autocompletion and syntax highlighting. mycli - MySQL CLI with autocompletion and syntax highlighting. pgcli - PostgreSQL CLI with autocompletion and syntax highlighting. Computer Vision Libraries for Computer Vi...
1)忘记在 if , elif , else , for , while , class ,def 声明末尾添加 :(导致 “SyntaxError :invalid syntax”) 正例: 2)使用 = 而不是 ==(导致“SyntaxError: invalid syntax”) 例: 3)错误的使用缩进量。(导致“IndentationError:unexpected indent”、“IndentationError:unindent does not match any ...
string模块中并没有实现一个atoc()函数,那么你来实现一个atoc(),接受单个字符串做参数输入:一个表示复数的字符串。例如,'-1.23e+4-5.67j',返回相应的复数对象。你不能用eval()函数,但可以使用complex()函数,而且你只能在如下的限制之下使用complex():complex(real,imag)的real和imag都必须是浮点值。1...
SyntaxError: invalid syntax >>> print (list) # 使用 Python3.x 的 print 函数 ['a', 'b', 'c'] >>> Python3.x 与 Python2.x 的许多兼容性设计的功能可以通过 __future__ 这个包来导入。Python 标识符在Python 里,标识符由字母、数字、下划线组成。在...