Flex中的 for in 与 for each in
2010-02-22 13:54
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for...in循环中的迭代变量是对象中的键名(Flex中叫属性?)
var mockData:Object={ID: 1,Say:"Hello",Name:"yuxuanji"};
for (var entry:Object in mockData)
{
trace(entry);
}
console output:
ID
Say
Name
//结论:for 遍历的是key
for each...in循环中的迭代变量是对象键值对中保存的值(属性所保存的值)
for each (var entry:Object in mockData)
{
trace(entry);
}
console output:
123
Hello
yuxuanji
//结论:for each遍历的是value
var mockData:Object={ID: 1,Say:"Hello",Name:"yuxuanji"};
for (var entry:Object in mockData)
{
trace(entry);
}
console output:
ID
Say
Name
//结论:for 遍历的是key
for each...in循环中的迭代变量是对象键值对中保存的值(属性所保存的值)
for each (var entry:Object in mockData)
{
trace(entry);
}
console output:
123
Hello
yuxuanji
//结论:for each遍历的是value
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