# For / In

### For and In ###
can be used to delete duplicated parts.

![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1659412816749/XEHb1z1iK.png align="left")
```
# e.g.
for individual data in range:
		Delete '안녕' from all the data
```

### For loop ###
1. : should be followed after for loop.
2. Any loop that needs to be run repeatedly should be indented by one tab or 4 spaces. (Python doesn't run print under for if it's not indented.)

### Range function ###
- range(starting num, ending num)
> it does NOT include the ending number.
e.g. range(0, 5) means the list of '0, 1, 2, 3, 4'
- How many times does it run? 
  - it depends on the number of individuals on the list after in.

```
list1 = [1, 2, 3, 4, 5]
list2 = ['a', 'b', 'c', 'd', 'e']
```
```
for element in list1: 
  print(element)

1
2
3
4
5
```
```
for element in list2:
  print(element)

a
b
c
d
e
```

```
for i in range(0, 5): # 맨 끝에 :(콜론)을 사용하였다.
  print(i,'번 반복할게요~') # print 앞에 들여쓰기를 해주었다.
```

```
0 번 반복할게요~
1 번 반복할게요~
2 번 반복할게요~
3 번 반복할게요~
4 번 반복할게요~
```