要记住这一点(尽管我几乎每次都要查找),方法是记住“DBES”这个记忆口诀,它代表“Decode Bytes Encode Strings”。当我需要转换字节和字符串时,我会在脑海中说“dee bess”。当你有bytes并需要一个string时,“Decode Bytes”。当你有一个字符串并需要字节时,“Encode Strings”。 有了这个想法,让我们逐行分解ex2...
You can also use any objects, such as numbers or strings, as operands to and, or, and not. You can even use combinations of a Boolean object and a regular one. In these situations, the result depends on the truth value of the operands. Note: Boolean expressions that combine two Boolean...
print_two_again("Zed","Shaw") print_one("First!") print_none() Functions do three things:函数做了三件事,命名代码、接收参数、构造你自己的代码。 1. They name pieces of code the way variables name strings and numbers. 2. They take arguments the way your scripts take argv. 3. Using #1...
print_two("Zed","Shaw")print_two_again("Zed","Shaw")print_one("First!")print_none()Functions do three things:函数做了三件事,命名代码、接收参数、构造你自己的代码。1. They name pieces of code the way variables name strings and numbers.2. They take arguments the way your scripts take ...
15You have11boxesofcrackers!16Man that's enoughfora party!17Get a blanket.1819And we can combine the two,variables and math:20You have110cheeses!21You have1050boxesofcrackers!22Man that's enoughfora party!23Get a blanket. 学习练习
parent.parent WindowsPath('C:/Users/gahjelle') Note that .parent returns a new Path object, whereas the other properties return strings. This means, for instance, that you can chain .parent in the last example or even combine it with the slash operator to create completely new paths:...
11Getablanket.1213Wecanevendomathinsidetoo:14Youhave30cheeses!15Youhave11boxesofcrackers!16Manthat's enough for a party!17Getablanket.1819Andwecancombinethetwo,variablesandmath:20Youhave110cheeses!21Youhave1050boxesofcrackers!22Manthat's enough for a party!23Getablanket....
This memory location can store different values such as integers, real numbers, Booleans, strings, or more complex data such as lists or dictionaries. In the following code, we define a variable port that stores an integer and banner that stores a string. To combine the two variables ...
In Python 2, you could combine these into one import statement. In Python 3, you can’t, and the 2to3 script is not smart enough to split the import statement into two. The solution is to split the import statement manually. So this two-in-one import: import constants, sys...
This memory location can store different values such as integers, real numbers, Booleans, strings, or more complex data such as lists or dictionaries. In the following code, we define a variable port that stores an integer and banner that stores a string. To combine the two variables ...