how to execute a string in R?

for example, i have a string a = "10*8"

how should i let R execute this string? In R, is there any functions like eval() in python/perl ?

3x!

expression()

thanks a lot,

but this command seems like do not get the result i like:

> a

[1] "10*8"

> expression(a)

expression(a)

eval(parse(text='10*8'))

谢谢老大：）