JSON ไม่อนุญาตให้แสดงความคิดเห็น เหตุผลก็คือโง่อย่างเต็มที่เพราะคุณสามารถใช้ JSON ตัวเองเพื่อสร้างความคิดเห็นซึ่ง obviates เหตุผลอย่างสิ้นเชิงและโหลดข้อมูลพื้นที่ parser ไม่มีเหตุผลที่ดีเลยสำหรับว่าผลเดียวกันและปัญหาที่อาจเกิดขึ้นเช่นที่พวกเขาอยู่ที่: JSON ไฟล์ที่มีความคิดเห็น
หากคุณพยายามใส่ความคิดเห็นใน (ใช้//
หรือ/* */
หรือ#
เป็นต้น) ตัวแยกวิเคราะห์บางตัวจะล้มเหลวเพราะสิ่งนี้ไม่ได้อยู่ในข้อกำหนดของ JSON อย่างเคร่งครัด ดังนั้นคุณไม่ควรทำเช่นนั้น
นี่คือตัวอย่างที่ระบบจัดการรูปภาพของฉันบันทึกสัญลักษณ์ภาพและข้อมูล (ความคิดเห็น) ที่จัดรูปแบบพื้นฐานเกี่ยวกับพวกเขา (ที่ด้านล่าง):
{
"Notations": [
{
"anchorX": 333,
"anchorY": 265,
"areaMode": "Ellipse",
"extentX": 356,
"extentY": 294,
"opacity": 0.5,
"text": "Elliptical area on top",
"textX": 333,
"textY": 265,
"title": "Notation 1"
},
{
"anchorX": 87,
"anchorY": 385,
"areaMode": "Rectangle",
"extentX": 109,
"extentY": 412,
"opacity": 0.5,
"text": "Rect area\non bottom",
"textX": 98,
"textY": 385,
"title": "Notation 2"
},
{
"anchorX": 69,
"anchorY": 104,
"areaMode": "Polygon",
"extentX": 102,
"extentY": 136,
"opacity": 0.5,
"pointList": [
{
"i": 0,
"x": 83,
"y": 104
},
{
"i": 1,
"x": 69,
"y": 136
},
{
"i": 2,
"x": 102,
"y": 132
},
{
"i": 3,
"x": 83,
"y": 104
}
],
"text": "Simple polygon",
"textX": 85,
"textY": 104,
"title": "Notation 3"
}
],
"imageXW": 512,
"imageYW": 512,
"imageName": "lena_std.ato",
"tinyDocs": {
"c01": "JSON image notation data:",
"c02": "-------------------------",
"c03": "",
"c04": "This data contains image notations and related area",
"c05": "selection information that provides a means for an",
"c06": "image gallery to display notations with elliptical,",
"c07": "rectangular, polygonal or freehand area indications",
"c08": "over an image displayed to a gallery visitor.",
"c09": "",
"c10": "X and Y positions are all in image space. The image",
"c11": "resolution is given as imageXW and imageYW, which",
"c12": "you use to scale the notation areas to their proper",
"c13": "locations and sizes for your display of the image,",
"c14": "regardless of scale.",
"c15": "",
"c16": "For Ellipses, anchor is the center of the ellipse,",
"c17": "and the extents are the X and Y radii respectively.",
"c18": "",
"c19": "For Rectangles, the anchor is the top left and the",
"c20": "extents are the bottom right.",
"c21": "",
"c22": "For Freehand and Polygon area modes, the pointList",
"c23": "contains a series of numbered XY points. If the area",
"c24": "is closed, the last point will be the same as the",
"c25": "first, so all you have to be concerned with is drawing",
"c26": "lines between the points in the list. Anchor and extent",
"c27": "are set to the top left and bottom right of the indicated",
"c28": "region, and can be used as a simplistic rectangular",
"c29": "detect for the mouse hover position over these types",
"c30": "of areas.",
"c31": "",
"c32": "The textx and texty positions provide basic positioning",
"c33": "information to help you locate the text information",
"c34": "in a reasonable location associated with the area",
"c35": "indication.",
"c36": "",
"c37": "Opacity is a value between 0 and 1, where .5 represents",
"c38": "a 50% opaque backdrop and 1.0 represents a fully opaque",
"c39": "backdrop. Recommendation is that regions be drawn",
"c40": "only if the user hovers the pointer over the image,",
"c41": "and that the text associated with the regions be drawn",
"c42": "only if the user hovers the pointer over the indicated",
"c43": "region."
}
}