python - 在循环 python 中查找下一个迭代

Question

我试图找出给定的字符串是否有 2 个目标字符相互跟随。所以本质上，我试图找出一个角色及其邻居是否是目标角色。我该怎么办？以下是我迄今为止所尝试过的。

target_list=["t","a","r","g","e","t"]

for char in some_string:
    if (char and some_string[some_string.index(char)+1]) in target_list:
        print ("correct")
    else:
        print ("incorrect")

预期输出:

1. 如果 some_string="heytr"== "正确"
2. 如果 some_string="hyt"== "不正确"
3. 如果 some_string="heyt"== "不正确"

Answer 1

只需遍历索引并处理每对字符:

for i in range(len(some_string) - 1):
    if some_string[i] in target_list and some_string[i+1] in target_list:
        print ("correct")
        break

if i == len(some_string) - 1:
    print ("incorrect")

您也可以创建映射并查找相邻的真阳性:

m = [(char in target_list) for char in some_string]

for i in range(len(m) - 1):
    if m[i] and m[i+1]:
        print ("correct")
        break
if i == len(m) - 1:
    print ("incorrect")