安装

首先要安装golang开发环境

git clone https://github.com/qiniu/goplus.git
cd goplus && go install -v ./...
执行完这几步后在GOPATH/bin下面会生成GoPlus的命令行工具qrun，qexp，qfmt和qgo

命令说明如下
qrun: 执行工具，qrun xxx.gop 执行gop脚本
qexp: 包装工具，qexp export <goPkgPath> 生成go包的GoPlus包装层
qfmt: 格式化工具，qfmt xxx.gop 格式化gop脚本
qgo: 转换工具，qgo <gop包名称> 将gop文件转换为go文件

语法实例

helloworld.gop

println("hello world")

printf("hello %s", "world")

执行：qrun helloworld.gop

map

student := {"name":"zhangsan", "age": 20}
println(student)

students := [{"name":"zhangsan","age":20},{"name":"lisi","age":21}]
println(students)

students := [{"name":"zhangsan","age":20},{"name":"lisi","age":21},{"name1":"wangwu","age1":22}]
println(students)

这里map的schema是可以不同的，如name和name1

列表推导式(List comprehension)

list1 := [x*x for x <- [1,2,3]]
println(list1)        //[1 4 9]

list2 := [x for x <- [1,2,3,4,5,6,7,8,9], x % 2 == 0]
println(list2)      //[2 4 6 8]

map1 := {x: i for i, x <- [1,2,4,8]}
println(map1)    //map[1:0 2:1 4:2 8:3]

map2 := {x: i for i, x <- [1,2,3,4,5,6,7,8,9], i % 2 == 0}
println(map2)    //map[1:0 3:2 5:4 7:6 9:8]

map3 := {v: k for k, v <- {1:"a",2:"b",3:"c",4:"d"}, k > 2}
println(map3)    //map[c:3 d:4]

for循环

for i<- [1,2,3,4,5,6,7,8,9], i % 2 == 0{
    println(i)
}

异常处理

import ("strconv")

func add(x,y string)(int,error){
    return strconv.Atoi(x)? + strconv.Atoi(y)?, nil
}

sum, err := add("1","x")
println(err)
println(sum)