算法创作|交替合并字符串问题解决方法

class Solution(object):

        def mergeAlternately(self, word1, word2):

                 W1 ,W2=len(word1) ,len(word2)

                 hebing=[]

                 jieguo=””

                 if W1==w2:

                         for a in range(0,w1):

                                  hebing . append(word1[a])

                                  hebing . append(word2[a])

                 elif W1 > W2:

                         for a in range(0,w2):

                                  hebing. append(word1[a])

                                  hebing . append(word2[a])

                         for a in range(w2,w1):

                                  hebing. append(word1[a])

                 else:

                         for a in range(0,w1):

                                  hebing . append(word1[a])

                                  hebing. append(word2[a])

                         for a in range(w1,w2):

                                  hebing . append(word2[a])

                 for b in range(0,w1+w2):

                         jieguo=jieguo+hebing[b]

                 return jieguo