3
请考虑这个例子,我将map!
保存到一个文件中,并且想要加载它并访问它的密钥和值。其键是散列(INTEGER!通过checksum
计算)和它的值是块:加载散列 - 对象密钥对的映射
Rebol []
bl1: make object! [
name: "first"
age: 42
]
bl2: make bl1 []
bl2/name: "second"
bl2/age: 30
hash1: checksum to-binary to-string bl1
hash2: checksum to-binary to-string bl2
m1: make map! []
repend m1 [hash1 bl1]
repend m1 [hash2 bl2]
save %./map_example.ls m1
m2: do load %./map_example.ls
probe join "m2: " type? m2
它返回"m2: map!"
文件%map_example.ls组成:
make map! [
2749161 make object! [
name: "first"
age: 42
]
4111405 make object! [
name: "second"
age: 30
]
]
我如何才能读取map!
以访问其对象的键和值?
是foreach
要走的路吗?