[Python 3 學習筆記] 關於字串處理及其範例
http://pythoncat.blogspot.tw/2014/11/python.html
字串處理
1. print() 字串列印
- Ex:
- print (“Hello, Daisy!”)
- Hello, Daisy!
2. replace() 字串取代
- Ex1:
- >>> s = “$1,000.00”
- >>> s1 = s.replace(“$”,””)
- >>> print(s1)
- 1,000.00
- Ex2(替代多個字元):
- >>> s = “$1,000.00”
- >>> s1 = s.replace(“$”,””)
- >>> s = “$1,000.00”
- >>> s1 = s.replace(“$”,””).replace(“,”,””)
- >>> print(s1)
- 1000.00
3. strip() 字串移除空白
- Ex1(移除頭尾側空白):
- >>> s = ” $1,000.00 “
- >>> s1 = s.strip()
- >>> print(s1)
- $1,000.00
- Ex2(僅移除右側空白):
- s = ” $1,000.00 “
- >>> s1 = s.rstrip()
- >>> print(s1)
- $1,000.00
- Ex3(僅移除左側空白):
- s = ” $1,000.00 “
- >>> s1 = s.lstrip()
- >>> print(s1)
- $1,000.00
4. end=”” 移除換行
- python 3 於 print 後,會自動換行,像是自動帶了 C 語言的 n。若要移除換行符號請參考範例:
- 移除換行符號前:
- for i in range(1,5):
- print (i)
- 1
- 2
- 3
- 4
- 移除換行符號後:
- for i in range(1,5):
- print (i,end=”)
- 1234
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