jeapedu 70 函數習題統計字符個數

cragwen

于 2018-03-06 07:33:11 发布

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分类专栏： jeapedu

本文链接：https://blog.youkuaiyun.com/cragwen/article/details/79453029

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本文介绍了几种基本的字符串操作和列表处理方法，包括字符计数、查找索引、寻找最大值等实用函数。通过具体代码示例展示了如何在Python中实现这些功能。

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链接: https://pan.baidu.com/s/1pfgFGBTxXtt-iLiVD_awxg 密码: nqa6

# -1 myStrCount to count times of char in str
# 0 string myIndex function
# 1 string myfind fun
# 2 findlistMax fun, find max value
# 3 
def myStrCound(li, c):
    count = 0
    for x in li:
        if x == c:
            count += 1
    return count
s = "hello jeapedu.com"
t = myStrCound(s, "e")
print(s, "e", t)
print("--------------------------")
def myIndex(li, t):
    i = 0
    while i < len(li):
        if li[i] == t:
            return i
            break
        i += 1
li = [3, 4, 2, 5, 5, 2, 3]
t = myIndex(li, 5)
print(li, 5, t)
print("--------------------------")
def myfind(s, t):
    i = 0
    while i < len(s):
        if s[i] == t:
            return i
            break
        i += 1
s = "hello jeapedu.com"
t = myfind(s, "u")
print(s, "u", t)
print("--------------------------")
def findlistMax(li):
    max = li[0]
    for x in li:
        if max < x:
            max = x
    return max
li = [234, 23, 4, 2344, 999]
max = findlistMax(li)
print(li, max)
print("--------------------------")