python中strip、startswith、endswith

strip(rm)用来删除元素内的空白符：

rm对应要删除空白符的元素，当rm为空(strip())时删除所有元素的空白符

startswith、endswith用来查找开头或结尾条件的元素

例子：

 1 li = ["alec", " aric", "Alex", "Tony", "rain"]
 2 tu = ("alec", " aric", "Alex", "Tony", "rain") 
 3 dic = {'k1': "alex", 'k2': ' aric',  "k3": "Alex", "k4": "Tony"}
 4 for i in li:
 5     b = i.strip()
 6     if (b.startswith("a") or b.startswith("A")) and b.endswith("c"):
 7         print(b)
 8 
 9 for i in tu:
10     b = i.strip()
11     if (b.startswith("a") or b.startswith("A")) and b.endswith("c"):
12         print(b)
13         
14 for i in dic:
15     b = dic[i].strip()
16     if (b.startswith("a") or b.startswith("A")) and b.endswith("c"):
17         print(b)

上面代码：查找以 a或A开头并且以 c 结尾的所有元素，并输出

输出结果：

alec
aric
alec
aric
aric

 

转载于:https://www.cnblogs.com/zhangzengqiang/p/7499339.html