Question

关于python列表嵌套问题？

student[[001,"张三","男"],[002,"李四","男"],[003,"王五","女"]]
要求输入男时，统计男性有多少人，
输入女时，统计女性有多少人
请问怎么设置变量调用列表嵌套里的数据？如果可以帮忙实现上面的代码，谢谢！

Answer 1

代码如下：

---

---

student = [["001","张三","男"],["002","李四","男"],["003","王五","女"]]

text = input("性别：")

count = 0

for i in student:

if text == i[2]:

count+=1

print("性别{0}共有{1}人".format(text,count))

追问

如果用while代码怎么写？

追答

student = [["001", "张三", "男"], ["002", "李四", "男"], ["003", "王五", "女"]]
text = input("性别：")
count = 0
student_num = len(student)
while student_num:
student_num-= 1
if text == student[student_num][2]:
count += 1
print("性别{0}共有{1}人".format(text, count))