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：

li = ["alec", " aric", "Alex", "Tony", "rain"]
tu = ("alec", " aric", "Alex", "Tony", "rain") 
dic = {'k1': "alex", 'k2': ' aric',  "k3": "Alex", "k4": "Tony"}
for i in li:
    b = i.strip()
    if (b.startswith("a") or b.startswith("A")) and b.endswith("c"):
        print(b)

for i in tu:
    b = i.strip()
    if (b.startswith("a") or b.startswith("A")) and b.endswith("c"):
        print(b)
        
for i in dic:
    b = dic[i].strip()
    if (b.startswith("a") or b.startswith("A")) and b.endswith("c"):
        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