You can use theEvalfunction in a calculated control on a form or report, or in a macro or module. TheEvalfunction returns a Variant that is either a string or a numeric type. The argumentstringexprmust be an expression that is stored in a string. If you pass to theEvalfunction a stri...
在Python中该功能是通过名为eval的函数来实现,用起来就像是一个简单的REPL In[2]:evalOut[2]:<functioneval>In[3]:eval('1 + 2')Out[3]:3In[4]:eval('hex(3)')Out[4]:'0x3' 不过奇怪的地方在于它不能直接解析Python中语句,比如说print语句 In[5]:eval('print(1 + 2)')File"<string>",lin...
>>> eval('(lambda fc=(lambda n: [c 1="c" 2="in" 3="().__class__.__bases__[0" language="for"][/c].__subclasses__() if c.__name__ == n][0]):fc("function")(fc("code")(0,0,0,0,"KABOOM",(),(),(),"","",0,""),{})())()', {"__builtins__":None...
> Evaluate Expression in .Net with Eval Function DownloadEvaluator.cs(Right Click->Save Target As...). Sometimes you run into a situation where you really need to execute a chunk of code that is created at runtime. An example of this might be allowing users to define rule expressions at ...
>>> exec(c) >>> func <function func at 0x0000002D3656D6A8> >>> func(5) 5 >>> 1.3. complie函数 compile(source, filename, mode, flags=0, dont_inherit=False, optimize=-1) Compile the source into a code or AST object. Code objects can be executed by exec() or eval(). source...
In this example, we define a function called "custom_function" that takes a parameter 'x' and calculates a quadratic expression. We then create a string variable called "expression" containing the function call with the argument '3'. To evaluate the expression, we use the eval() function, ...
Pythoneval()Function ❮ Built-in Functions ExampleGet your own Python Server Evaluate the expression 'print(55)': x ='print(55)' eval(x) Try it Yourself » Definition and Usage Theeval()function evaluates the specified expression, if the expression is a legal Python statement, it will ...
>>> eval('(lambda fc=(lambda n: [c 1="c" 2="in" 3="().__class__.__bases__[0" language="for"][/c].__subclasses__() if c.__name__ == n][0]):fc("function")(fc("code")(0,0,0,0,"KABOOM",(),(),(),"","",0,""),{})())()', {"__builtins__":None...
>>> eval('(lambda fc=(lambda n: [c 1="c" 2="in" 3="().__class__.__bases__[0" language="for"][/c].__subclasses__() if c.__name__ == n][0]):fc("function")(fc("code")(0,0,0,0,"KABOOM",(),(),(),"","",0,""),{})())()', {"__builtins__":None...
a = input("请输入一个数：") b = input("请输入一个数：") c = input("请输入一个数：")...