摘要：
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>定时器应用函数</title></head><body> <script> function invoke(f,start,interval,end){ if(!s 阅读全文
摘要：
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>当文档载入完成时调用一个函数</title></head><body><script> function onLoad(f){ if(onLoad.loaded){ 阅读全文