在上面的代码示例中,我们首先创建了两个列表list1和list2,然后使用zip()函数将这两个列表打包成一个元组的列表zipped_lists。最后在for循环中通过item1, item2同时迭代这两个列表,分别取出每个列表中的元素并打印出来。 关系图 erDiagram FOR_LOOP ||--| MULTIPLE_VARIABLES : has 通过以上步骤和代码示例,你应该...
In Python, loops can be used to solve awesome and complex problems. You will likely encounter problems that would require you to repeat an action until a condition is met(while loop works best here) or a problem that requires you to perform an action on a bunch of items(for loop works ...
#加载数据 defload_exdata(filename):data=[]withopen(filename,'r')asf:forlineinf.readlines():line=line.split(',')current=[int(item)foriteminline]#5.5277,9.1302data.append(current)returndata data=load_exdata('ex1data2.txt');data=np.array(data,np.int64)x=data[:,(0,1)].reshape((-1,...
Python allows you to assign values to multiple variables in one line: ExampleGet your own Python Server x, y, z ="Orange","Banana","Cherry" print(x) print(y) print(z) Try it Yourself » Note:Make sure the number of variables matches the number of values, or else you will get an...
As you can see, the components that you saw in the above section return in this small example of a for loop in Python: the for keyword, the variable number, the in keyword, the range() function and the code that you want to execute multiple times, print("Thank you"). That isn't ...
In Python, we can do something called tuple unpacking to get the items inside the tuples printed. For doing so we need to bring two iterable variables in the for loop: for(item1, item2)intup_list:print(item1)print(item2)print('\n') ...
By using thenew-stylestring formatting withnumbers(format()method), we can also print the multiple variables. This is similar to method 2 but here we can use the numbers inside the curly braces ({0}), it will help for reordering the values. ...
python - "for loop" with two variables? - Stack Overflow https://stackoverflow.com/questions/18648626/for-loop-with-two-variables datetime operation Get date of the datetime instance 8.1. datetime — Basic date and time types — Python 3.6.6rc1 documentation https://docs.python.org/3/li...
If the above loop is cast as a function, append and upper become local variables. Python accesses local variables much more efficiently than global variables. def func(): upper = str.upper 定义一个函数,所有变量都变成了局部变量。。 newlist = [] append = newlist.append for word in oldlist...
current=[int(item)foriteminline] #5.5277,9.1302 data.append(current) returndata data=load_exdata('ex1data2.txt'); data=np.array(data,np.int64) x=data[:,(0,1)].reshape((-1,2)) y=data[:,2].reshape((-1,1)) m=y.shape[0] ...