添加 py过滤失败

py过滤失败

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+#取出子列表
+x, y, z = [
+    ["RℯℱE", "DR✍O", "CK{❦"],
+    ["I a", "m le♫a", "rn†‡in"],
+    ["g Py✣✤✥t", "ho⇒⇓⇔⇕na", "t SR々E}"]
+]
+
+# 取出x
+a1, a2, a3 = x
+
+# 取出y
+b1, b2, b3 = y
+
+# 取出z
+c1, c2, c3 = z
+
+# 过滤
+x1 = ''
+for sub_str_list in x:           #遍历x中的每个字符串
+    for char in sub_str_list:    #遍历x中的每个字符
+        if char.isalnum() or char.isspace() or char in '{}':
+            x1 += char
+print(x1)
+
+y1 = ''
+for sub_str_list in y:
+    for char in sub_str_list:
+        if char.isalnum() or char.isspace() or char in '{}':
+            y1 += char
+print(y1)
+
+z1 = ''
+for sub_str_list in z:
+    for char in sub_str_list:
+        if char.isalnum() or char.isspace() or char in '{}':
+            z1 += char
+print(z1)
+
+#连接
+print(x1+y1+z1)
+
+#输出，未过滤干净