AI代码解释 julia>f("foo",3)ERROR:MethodError:no method matchingf(::String,::Int64)Closest candidates are:f(!Matched::Number,::Number)at none:1julia>f()ERROR:MethodError:no method matchingf()Closest candidates are:f(!Matched::Float64,!Matched::Float64)at none:1f(!Matched::Number,!Match...
, trues, trunc, truncate, tryparse, tuple, TypeError, typeintersect, typejoin, typemax, typemin, typeof, U ucfirst, UndefRefError, UndefVarError, unescape_string, union, union!, unlock, unmark, unsafe_convert, unsafe_copy!, unsafe_load, unsafe_pointer_to_objref, unsafe_store!, unsafe_...
search(string, char) search(string, char, offset) contains(string, substring) in() start(string) next(string, index) repeat(string, number) join(string-array, “, “, “ and “) ind2chr(string, index) chr2ind(string, index) 7 Unicode 请查阅Julia官方在线文档 8 正则表达式(Regular expres...
创建一个DOMString对象的Blob对象。...如下代码: 理解URL.createObjectURL对象 window对象的URL对象是用来将blob或file读取成一个url的。...(blob); 生成的url,然后我们把 a链接的download属性设置下,该属性值就是我们的下载文件的文件名。 5.6K10 将数据文件(csv,Tsv)导入Hbase的三种方法 将各种类型的数据库...
# => -3 # 按位非 (not) 3 & 5 # => 1 # 按位与 (and) 2 | 4 # => 6 # 按位或 (or) xor(2, 4) # => 6 # 按位异或 (xor) 2 >>> 1 # => 1 # 逻辑右移 2 >> 1 # => 1 # 算术右移 2 << 1 # => 4 # 逻辑/算术左移 # 可以用函数 bitstring 查看二进制数...
collect("APPLE") == ['A','P','P','L','E'] # string to vector # Vector{Char}collect((1,3,5)) == [1,3,5]# tuple to vector # Vector{Int64} 其实Julia中的vector只是一维的array,用typeof便能看出来。 typeof([1,3,5])# Vector{Int64} (alias for Array{Int64, 1}) 初始化 ...
("Ian", 1984, "Julia") # 子类型声明 abstract type Bird end struct Duck <: Bird pond::String end # 参数化类型 struct Point{T <: Real} x::T y::T end p = Point{Float64}(1,2) # 联合类型 Union{Int, String} # 遍历类型层级 supertype(TypeName) 和 subtypes(TypeName) # 默认的...
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("Ian", 1984, "Julia") # 子类型声明 abstract type Bird end struct Duck <: Bird pond::String end # 参数化类型 struct Point{T <: Real} x::T y::T end p = Point{Float64}(1,2) # 联合类型 Union{Int, String} # 遍历类型层级 supertype(TypeName) 和subtypes(TypeName) # 默认的超...
answer=42x,y,z=1,[1:10;],"A string"x,y=y,x# 交换 x, y constDATE_OF_BIRTH=2012 行尾注释 i=1# 这是一行注释# 多行注释#= 这是另一行注释 =# 链式操作 x=y=z=1# 从右向左0<x<3# true5<x!=y<5# false 函数定义 functionadd_one(i)returni+1end ...