ee.Number.long
با مجموعهها، منظم بمانید
ذخیره و طبقهبندی محتوا براساس اولویتهای شما.
مقدار ورودی را به یک عدد صحیح 64 بیتی امضا شده ارسال می کند.
استفاده | برمی گرداند | Number. long () | شماره |
استدلال | تایپ کنید | جزئیات | این: input | شماره | مقدار ورودی |
نمونه ها
ویرایشگر کد (جاوا اسکریپت)
// Declare an ee.Number.
var number = ee.Number(100);
print('ee.Number:', number);
// Cast a number to signed 64-bit integer.
var longNumber = number.long();
print('ee.Number cast to long:', longNumber);
/**
* Casting numbers to long that are outside of its range and precision can
* modify the resulting value, note the behavior of the following scenarios.
*/
// A floating point number cast to long loses decimal precision.
var float = ee.Number(1.7);
print('Floating point value:', float);
var floatToLong = float.long();
print('Floating point value cast to long:', floatToLong);
راه اندازی پایتون
برای اطلاعات در مورد API پایتون و استفاده از geemap
برای توسعه تعاملی به صفحه محیط پایتون مراجعه کنید.
import ee
import geemap.core as geemap
کولب (پایتون)
# Declare an ee.Number.
number = ee.Number(100)
print('ee.Number:', number.getInfo())
# Cast a number to signed 64-bit integer.
long_number = number.long()
print('ee.Number cast to long:', long_number.getInfo())
"""Casting numbers to long that are outside of its range and precision can
modify the resulting value, note the behavior of the following scenarios.
"""
# A floating point number cast to long loses decimal precision.
float_number = ee.Number(1.7)
print('Floating point value:', float_number.getInfo())
float_to_long = float_number.long()
print('Floating point value cast to long:', float_to_long.getInfo())
جز در مواردی که غیر از این ذکر شده باشد،محتوای این صفحه تحت مجوز Creative Commons Attribution 4.0 License است. نمونه کدها نیز دارای مجوز Apache 2.0 License است. برای اطلاع از جزئیات، به خطمشیهای سایت Google Developers مراجعه کنید. جاوا علامت تجاری ثبتشده Oracle و/یا شرکتهای وابسته به آن است.
تاریخ آخرین بهروزرسانی 2025-07-24 بهوقت ساعت هماهنگ جهانی.
[null,null,["تاریخ آخرین بهروزرسانی 2025-07-24 بهوقت ساعت هماهنگ جهانی."],[[["\u003cp\u003e\u003ccode\u003enumber.long()\u003c/code\u003e casts the input Number value to a signed 64-bit integer.\u003c/p\u003e\n"],["\u003cp\u003eCasting floating point numbers to long using this method results in the loss of decimal precision.\u003c/p\u003e\n"],["\u003cp\u003eThe method returns an \u003ccode\u003eee.Number\u003c/code\u003e object representing the integer value.\u003c/p\u003e\n"]]],["The `Number.long()` method casts an input value to a signed 64-bit integer. It takes a Number as input and returns a Number. Casting a floating-point number to long results in the loss of decimal precision. Numbers outside the range and precision of a 64-bit integer may be modified during the cast. Examples demonstrate casting a regular number and a floating number into long using JavaScript and Python.\n"],null,["# ee.Number.long\n\nCasts the input value to a signed 64-bit integer.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|-----------------|---------|\n| Number.long`()` | Number |\n\n| Argument | Type | Details |\n|---------------|--------|------------------|\n| this: `input` | Number | The input value. |\n\nExamples\n--------\n\n### Code Editor (JavaScript)\n\n```javascript\n// Declare an ee.Number.\nvar number = ee.Number(100);\nprint('ee.Number:', number);\n\n// Cast a number to signed 64-bit integer.\nvar longNumber = number.long();\nprint('ee.Number cast to long:', longNumber);\n\n\n/**\n* Casting numbers to long that are outside of its range and precision can\n* modify the resulting value, note the behavior of the following scenarios.\n*/\n\n// A floating point number cast to long loses decimal precision.\nvar float = ee.Number(1.7);\nprint('Floating point value:', float);\n\nvar floatToLong = float.long();\nprint('Floating point value cast to long:', floatToLong);\n```\nPython setup\n\nSee the [Python Environment](/earth-engine/guides/python_install) page for information on the Python API and using\n`geemap` for interactive development. \n\n```python\nimport ee\nimport geemap.core as geemap\n```\n\n### Colab (Python)\n\n```python\n# Declare an ee.Number.\nnumber = ee.Number(100)\nprint('ee.Number:', number.getInfo())\n\n# Cast a number to signed 64-bit integer.\nlong_number = number.long()\nprint('ee.Number cast to long:', long_number.getInfo())\n\n\n\"\"\"Casting numbers to long that are outside of its range and precision can\nmodify the resulting value, note the behavior of the following scenarios.\n\"\"\"\n\n# A floating point number cast to long loses decimal precision.\nfloat_number = ee.Number(1.7)\nprint('Floating point value:', float_number.getInfo())\n\nfloat_to_long = float_number.long()\nprint('Floating point value cast to long:', float_to_long.getInfo())\n```"]]