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JSONå符串ä¸JSON对象çåºå«
Q:ä»ä¹æ¯"JSONå符串"ï¼ä»ä¹æ¯"JSON对象"ï¼ä¸¤è çåºå«?
a.JSON对象æ¯ç´æ¥å¯ä»¥ä½¿ç¨JQueryæä½çæ ¼å¼ï¼å¦C#ä¸å¯ä»¥ç¨å¯¹è±¡ï¼ç±»åï¼ç¹åºå±æ§ï¼æ¹æ³ï¼ä¸æ ·b.JSONåç¬¦ä¸²ä» ä» åªæ¯ä¸ä¸ªå符串ï¼ä¸ä¸ªæ´ä½ï¼ä¸æªåçè¯æ²¡åæ³ååºå ¶ä¸åå¨çæ°æ®ï¼ä¸è½ç´æ¥ä½¿ç¨ï¼é¤éä½ åªæ³alert()ä»ï¼
JSON对象:
var str2 = { "name": "deluyi", "sex": "man" };
JSONå符串:
var str1 = '{ "name": "deyuyi", "sex": "man" }';
Q:å°"JSONå符串"转å为"JSON对象"çæ¹æ³?
ä¸:使ç¨$.parseJSON(str)
//ç±JSONå符串转æ¢ä¸ºJSON对象var str='{ "name": "John" }';var obj = jQuery.parseJSON(str)alert("1"+ obj.name);
ps:æ¤ç§æ¹å¼ä» æ¯ææ åæ ¼å¼ï¼var str='{ "name": "John" }';äº:JSON.parse(str)
var str = '{ "name": "mady", "age": "24" }';var obj = JSON.parse(str);alert(obj.name);
ps:æ¤ç§æ¹å¼ä» æ¯ææ åæ ¼å¼ï¼var str='{ "name": "John" }';
ä¸:使ç¨eval('('+str+')');
//ç±JSONå符串转æ¢ä¸ºJSON对象var str='{ "name": "John" }';var obj = eval('(' + str + ')');alert( obj.name);var str2="{ 'name': 'John' }";var obj2 = eval('(' + str2 + ')');alert( obj2.name);var str3="{ name: 'John' }";var obj3 = eval('(' + str3 + ')');alert( obj3.name);
以ä¸åä¼è¾åºç»æâjohnâã
Evalæ¹å¼å¯ä»¥è½¬æ¢ä»¥ä¸æ ååéæ åæ ¼å¼å符串ï¼
var str="{ 'name': 'John' }";var str2='{ "name": "John" }';var str3="{ name: 'John' }";
Q:å°"JSON对象"转å为"JSONå符串"çæ¹æ³?
ä¸:使ç¨å ¨å±æ¹æ³JSON.stringify()ä¸toJSONString()
ä¾å¦ï¼
var last=obj.toJSONString(); //å°JSON对象转å为JSONå符
æè
var last=JSON.stringify(obj); //å°JSON对象转å为JSONå符
alert(last);
Q:读åJSON对象çæ¹æ³?
å¦ä¸é¢çä¾åï¼
var str2 = { "name": "mady", "sex": "man" };
å°±å¯ä»¥è¿æ ·è¯»åï¼
alert(str2.name);//åC#ä¸æ ·ç´æ¥å¾åºç¹â¦
å¼¹åºâ madyâã
æ们éå°çJSONå¾å°æè¿ä¹ç®åçï¼æ¯å¦å¤æä¸ç¹çJSON对象å¦ï¼
var str={"GetUserPostByIdResult":{"Age":"33","ID":"2server","Name":"mady"}};
解æç¨ï¼
alert(str.GetUserPostByIdResult.Name);//ä¸æ¬¡ç¹ä¸åºæ¥ï¼æå¤ç¹å 次
å¼¹åºï¼âmadyâã
Q:ä»ä¹æ¯"JSONå符串"ï¼ä»ä¹æ¯"JSON对象"ï¼ä¸¤è çåºå«?
a.JSON对象æ¯ç´æ¥å¯ä»¥ä½¿ç¨JQueryæä½çæ ¼å¼ï¼å¦C#ä¸å¯ä»¥ç¨å¯¹è±¡ï¼ç±»åï¼ç¹åºå±æ§ï¼æ¹æ³ï¼ä¸æ ·b.JSONåç¬¦ä¸²ä» ä» åªæ¯ä¸ä¸ªå符串ï¼ä¸ä¸ªæ´ä½ï¼ä¸æªåçè¯æ²¡åæ³ååºå ¶ä¸åå¨çæ°æ®ï¼ä¸è½ç´æ¥ä½¿ç¨ï¼é¤éä½ åªæ³alert()ä»ï¼
JSON对象:
var str2 = { "name": "deluyi", "sex": "man" };
JSONå符串:
var str1 = '{ "name": "deyuyi", "sex": "man" }';
Q:å°"JSONå符串"转å为"JSON对象"çæ¹æ³?
ä¸:使ç¨$.parseJSON(str)
//ç±JSONå符串转æ¢ä¸ºJSON对象var str='{ "name": "John" }';var obj = jQuery.parseJSON(str)alert("1"+ obj.name);
ps:æ¤ç§æ¹å¼ä» æ¯ææ åæ ¼å¼ï¼var str='{ "name": "John" }';äº:JSON.parse(str)
var str = '{ "name": "mady", "age": "24" }';var obj = JSON.parse(str);alert(obj.name);
ps:æ¤ç§æ¹å¼ä» æ¯ææ åæ ¼å¼ï¼var str='{ "name": "John" }';
ä¸:使ç¨eval('('+str+')');
//ç±JSONå符串转æ¢ä¸ºJSON对象var str='{ "name": "John" }';var obj = eval('(' + str + ')');alert( obj.name);var str2="{ 'name': 'John' }";var obj2 = eval('(' + str2 + ')');alert( obj2.name);var str3="{ name: 'John' }";var obj3 = eval('(' + str3 + ')');alert( obj3.name);
以ä¸åä¼è¾åºç»æâjohnâã
Evalæ¹å¼å¯ä»¥è½¬æ¢ä»¥ä¸æ ååéæ åæ ¼å¼å符串ï¼
var str="{ 'name': 'John' }";var str2='{ "name": "John" }';var str3="{ name: 'John' }";
Q:å°"JSON对象"转å为"JSONå符串"çæ¹æ³?
ä¸:使ç¨å ¨å±æ¹æ³JSON.stringify()ä¸toJSONString()
ä¾å¦ï¼
var last=obj.toJSONString(); //å°JSON对象转å为JSONå符
æè
var last=JSON.stringify(obj); //å°JSON对象转å为JSONå符
alert(last);
Q:读åJSON对象çæ¹æ³?
å¦ä¸é¢çä¾åï¼
var str2 = { "name": "mady", "sex": "man" };
å°±å¯ä»¥è¿æ ·è¯»åï¼
alert(str2.name);//åC#ä¸æ ·ç´æ¥å¾åºç¹â¦
å¼¹åºâ madyâã
æ们éå°çJSONå¾å°æè¿ä¹ç®åçï¼æ¯å¦å¤æä¸ç¹çJSON对象å¦ï¼
var str={"GetUserPostByIdResult":{"Age":"33","ID":"2server","Name":"mady"}};
解æç¨ï¼
alert(str.GetUserPostByIdResult.Name);//ä¸æ¬¡ç¹ä¸åºæ¥ï¼æå¤ç¹å 次
å¼¹åºï¼âmadyâã
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