LeetCode 面试题 01.06. 字符串压缩

示例1:

 输入："aabcccccaaa"
 输出："a2b1c5a3"
示例2:

 输入："abbccd"
 输出："abbccd"
 解释："abbccd"压缩后为"a1b2c2d1"，比原字符串长度更长。

class Solution:
    def compressString(self, S: str) -> str:
        sList = S
        if len(sList)<=1:
            return S
        tempCache = 1
        tempStr = sList[0]
        ret = ""
        for i in range(1,len(sList)):
            eachStr = sList[i]
            print(eachStr)
            if eachStr == tempStr:
                tempCache += 1
            else:

                ret = ret + tempStr + str(tempCache)
                tempCache = 1
            tempStr = eachStr
        ret = ret + tempStr + str(tempCache)
        if len(ret)>=len(sList):
            return S

        return ret