Map 字典

Map

CBrother字典是类似 "key" => "value" 这样的键值对集合，key可以是任意对象。字典的元素没有特定的顺序，如果顺序很重要的话就要使用数组了。

函数描述参数返回值用法
add(key,value) 添加元素，重复key会失败 key:键值，value:元素 添加结果。true:成功,false:失败 myMap.add("tony","age 18")
get(key) 获取键值对应的元素 key：键值 key对应的元素 myMap.get("tony")
set(key,value) 修改键值对应的元素 key：键值，value：新元素 修改结果。true:成功,false:失败 myMap.set("tony","age 20")
remove(key) 移除键值对应的元素 key：键值 被移除的元素 var delobj = myMap.remove("tony")
size() 获取字典元素个数 无 字典元素个数 var nowsize = myMap.size()
clear() 清空字典 无 无 myMap.clear()

例子:

  1. function main(parm)
  2. {
  3.     var myMap = new Map();
  4.     myMap.add("tony","age 18");
  5.     myMap.add("jim","age 19");
  6.     myMap.add("lily","age 17");
  8.     var len = myMap.size();
  9.     print "myMap size:" + len;
  11.     print "tony:" + myMap.get("tony");
  12.     print "jim:" + myMap.get("jim");
  13.     print "lily:" + myMap.get("lily");
  15.     myMap.remove("jim");
  16.     myMap.set("tony","age 17");
  18.     len = myMap.size();
  19.     print "after remove. myMap size:" + len;
  21.     print "tony:" + myMap.get("tony");
  22.     print "lily:" + myMap.get("lily");    
  24.     myMap.clear();
  25.     len = myMap.size();
  26.     print "after clear. myMap size:" + len;    
  27. }

结果:

  1. myMap size:3
  2. tony:age 18
  3. jim:age 19
  4. lily:age 17
  5. after remove. myMap size:2
  6. tony:age 17
  7. lily:age 17
  8. after clear. myMap size:0

Map也可以用{}来初始化:

  1. function main(parm)
  2. {
  3.     var myMap = {"tony":"age 18","jim":"age 19"};
  4.     myMap["lily"] = "age 17";
  6.     var len = myMap.size();
  7.     print "myMap size:" + len;
  9.     print "tony:" + myMap.get("tony");
  10.     print "jim:" + myMap.get("jim");
  11.     print "lily:" + myMap.get("lily");
  12. }

结果:

  1. myMap size:3
  2. tony:age 18
  3. jim:age 19
  4. lily:age 17

foreach支持

  1. function main(parm)
  2. {
  3.     var myMap = {"tony":"age 18","jim":"age 19","lily":"age 17"};
  5.     foreach(k,v : map)
  6.     {
  7.         print k + ":" + v;
  8.     }
  10.     print "========================";
  12.     foreach(k,v : map)
  13.     {
  14.         if(key == "lily")
  15.         {
  16.             foreach_del;
  17.             continue;
  18.         }
  19.         print k + ":" + v;
  20.     }
  21. }

结果:

  1. jim:age 19
  2. lily:age 17
  3. tony:age 18
  4. ========================
  5. jim:age 19
  6. tony:age 18