题库格式说明
支持JSON格式的题库上传，可以使用文件上传或直接复制JSON代码。
{
"name": "示例题库",
"questions": [
{
"question": "1+1等于多少？",
"options": ["1", "2", "3", "4"],
"answer": "2"
},
{
"question": "PHP的全称是？",
"options": ["Personal Home Page", "Hypertext Preprocessor", "Professional Tool", "None"],
"answer": "Hypertext Preprocessor"
}
]
}