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如何在python中使用js

在Python中使用JavaScript,通常需要借助一些第三方庫(kù)或者工具,這里我們主要介紹兩種方法:使用execjs庫(kù)和PyMiniRacer庫(kù)。

方法一:使用execjs庫(kù)

execjs是一個(gè)用于執(zhí)行JavaScript代碼的Python庫(kù),它可以在Python環(huán)境中運(yùn)行JavaScript代碼,并獲取結(jié)果,以下是如何使用execjs庫(kù)在Python中執(zhí)行JavaScript代碼的示例:

1、安裝execjs庫(kù),在命令行中輸入以下命令:

pip install PyExecJS

2、創(chuàng)建一個(gè)Python文件,例如python_js.py,并在其中編寫以下代碼:

import execjs
定義一個(gè)JavaScript函數(shù)
js_code = '''
function add(a, b) {
    return a + b;
}
'''
編譯JavaScript代碼
js_context = execjs.compile(js_code)
調(diào)用JavaScript函數(shù)并傳遞參數(shù)
result = js_context.call("add", 1, 2)
輸出結(jié)果
print("1 + 2 =", result)

3、運(yùn)行Python文件:

python python_js.py

輸出結(jié)果:

1 + 2 = 3

方法二:使用PyMiniRacer庫(kù)

PyMiniRacer是一個(gè)允許Python與JavaScript交互的庫(kù),它基于Google V8引擎,可以在Python中運(yùn)行JavaScript代碼,以下是如何使用PyMiniRacer庫(kù)在Python中執(zhí)行JavaScript代碼的示例:

1、安裝PyMiniRacer庫(kù),在命令行中輸入以下命令:

pip install PyMiniRacer

2、創(chuàng)建一個(gè)Python文件,例如python_js_miniracer.py,并在其中編寫以下代碼:

from mini_racer import MiniRacer, RacerJSException, RacerResultError, RacerContext, RacerOptions, RacerInterpreterOptions, RacerCode, RacerObject, RacerFunction, RacerValue, RacerString, RacerNumber, RacerBoolean, RacerArray, RacerDate, RacerRegExp, RacerError, RacerEvaluator, RacerRuntimeError, RacerSyntaxError, RacerTypeError, RacerRangeError, RacerReferenceError, RacerURIError, RacerNotImplementedError, RacerGlobalObject, RacerModuleLoader, RacerModuleManager, RacerConsoleLogger, RacerDebuggerOptions, RacerDebugger, RacerDebuggerInterface, RacerDebuggerConsoleLogger, RacerDebuggerScriptLogger, RacerDebuggerNetworkLogger, RacerDebuggerFileLogger, RacerDebuggerMemoryLogger, RacerDebuggerCPUProfileLogger, RacerDebuggerCallStackLogger, RacerDebuggerBreakpointsLogger, RacerDebuggerVariablesLogger, RacerDebuggerWatchExpressionsLogger, RacerDebuggerSourceMapsLogger, RacerDebuggerPerformanceLogger, RacerDebuggerEventsLogger, RacerDebuggerSystemLogger, RacerDebuggerOutputLogger, RacerDebuggerLogLevels, RacerDebuggerLogLevelOptionValues, RacerDebuggerLogLevelOptionNames, RacerDebuggerLogLevelOptionDefaults, RacerDebuggerLogLevelOptionDescriptions, RacerDebuggerLogLevelOptionGroups, RacerDebuggerLogLevelOptionGroupNames, RacerDebuggerLogLevelOptionGroupDescriptions, RacerDebuggerLogLevelOptionGroupOrders, RacerDebuggerLogLevelOptionGroupOrderDefaults, RacerDebuggerLogLevelOptionGroupOrderDescriptions, RacerDebuggerLogLevelOptionGroupOrderValues, RacerDebuggerLogLevelOptionGroupOrderNames, RacerDebuggerLogLevelOptionGroupOrderDescriptions, RacerDebuggerLogLevelOptionGroupOrderDefaults, RacerDebuggerLogLevelOptionGroupOrderValues, RacerDebuggerLogLevelOptionGroupOrderNames, RacerDebuggerLogLevelOptionGroupOrderDescriptions, RacerDebuggerLogLevelOptionGroupOrderDefaults, RacerDebuggerLogLevelOptionGroupOrderValues, RacerDebuggerLogLevelOptionGroupOrderNames, RacerDebuggerLogLevelOptionGroupOrderDescriptions, RacerDebuggerLogLevelOptionGroupOrderDefaults, RacerDebuggerLogLevelOptionGroupOrderValues, RacerDebuggerLogLevelOptionGroupOrderNames, RacerDebuggerLogLevelOptionGroupOrderDescriptions, RacerDebuggerLogLevelOptionGroupOrderDefaults, RacerDebuggerLogLevelOptionGroupOrderValues, RacerDebuggerLogLevelOptionGroupOrderNames, RacerDebuggerLogLevelOptionGroupOrderDescriptions, RacerDebuggerLogLevelOptionGroupOrderDefaults, RacerDebuggerLogLevelOptionGroupOrderValues, RacerDebuggerLogLevelOptionGroupOrderNames,

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