选择编程语言:

Crystal

Crystal programming language

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Crystal Programming

Learn Crystal programming by examples

Hello World in Crystal

hello-world Weight: 1

Values in Crystal

values Weight: 2

Variables in Crystal

variables Weight: 3

Constants in Crystal

constants Weight: 4

For in Crystal

for Weight: 5

If Else in Crystal

if-else Weight: 6

Switch in Crystal

switch Weight: 7

Arrays in Crystal

arrays Weight: 8

Slices in Crystal

slices Weight: 9

Maps in Crystal

maps Weight: 10

Functions in Crystal

functions Weight: 11

Multiple Return Values in Crystal

multiple-return-values Weight: 12

Variadic Functions in Crystal

variadic-functions Weight: 13

Closures in Crystal

closures Weight: 14

Recursion in Crystal

recursion Weight: 15

Range Over Built in Crystal

range-over-built-in-types Weight: 16

Pointers in Crystal

pointers Weight: 17

Strings and Runes in Crystal

strings-and-runes Weight: 18

Structs in Crystal

structs Weight: 19

Methods in Crystal

methods Weight: 20

Interfaces in Crystal

interfaces Weight: 21

Enums in Crystal

enums Weight: 22

Struct Embedding in Crystal

struct-embedding Weight: 23

Generics in Crystal

generics Weight: 24

Range Over Iterators in Crystal

range-over-iterators Weight: 25

Errors in Crystal

errors Weight: 26

Custom Errors in Crystal

custom-errors Weight: 27

Goroutines in Crystal

goroutines Weight: 28

Channels in Crystal

channels Weight: 29

Channel Buffering in Crystal

channel-buffering Weight: 30

Channel Synchronization in Crystal

channel-synchronization Weight: 31

Channel Directions in Crystal

channel-directions Weight: 32

Select in Crystal

select Weight: 33

Timeouts in Crystal

timeouts Weight: 34

Non Blocking Channel Operations in Crystal

non-blocking-channel-operations Weight: 35

Closing Channels in Crystal

closing-channels Weight: 36

Range Over Channels in Crystal

range-over-channels Weight: 37

Timers in Crystal

timers Weight: 38

Tickers in Crystal

tickers Weight: 39

Worker Pools in Crystal

worker-pools Weight: 40

Waitgroups in Crystal

waitgroups Weight: 41

Rate Limiting in Crystal

rate-limiting Weight: 42

Atomic Counters in Crystal

atomic-counters Weight: 43

Mutexes in Crystal

mutexes Weight: 44

Stateful Goroutines in Crystal

stateful-goroutines Weight: 45

Sorting in Crystal

sorting Weight: 46

Sorting By Functions in Crystal

sorting-by-functions Weight: 47

Panic in Crystal

panic Weight: 48

Defer in Crystal

defer Weight: 49

Recover in Crystal

recover Weight: 50

String Functions in Crystal

string-functions Weight: 51

String Formatting in Crystal

string-formatting Weight: 52

Text Templates in Crystal

text-templates Weight: 53

Regular Expressions in Crystal

regular-expressions Weight: 54

Json in Crystal

json Weight: 55

Xml in Crystal

xml Weight: 56

Time in Crystal

time Weight: 57

Sha256 Hashes in Crystal

sha256-hashes Weight: 58

Epoch in Crystal

epoch Weight: 58

Time Formatting Parsing in Crystal

time-formatting-parsing Weight: 59

Random Numbers in Crystal

random-numbers Weight: 60

Writing Files in Crystal

writing-files Weight: 61

Number Parsing in Crystal

number-parsing Weight: 61

Url Parsing in Crystal

url-parsing Weight: 62

Directories in Crystal

directories Weight: 64

Base64 Encoding in Crystal

base64-encoding Weight: 64

Reading Files in Crystal

reading-files Weight: 65

Embed Directive in Crystal

embed-directive Weight: 66

Testing And Benchmarking in Crystal

testing-and-benchmarking Weight: 67

Line Filters in Crystal

line-filters Weight: 67

File Paths in Crystal

file-paths Weight: 68

Command Line Subcommands in Crystal

command-line-subcommands Weight: 70

Temporary Files And Directories in Crystal

temporary-files-and-directories Weight: 70

Logging in Crystal

logging Weight: 72

Http Client in Crystal

http-client Weight: 73

Command Line Arguments in Crystal

command-line-arguments Weight: 73

Command Line Flags in Crystal

command-line-flags Weight: 74

Context in Crystal

context Weight: 75

Environment Variables in Crystal

environment-variables Weight: 76

Signals in Crystal

signals Weight: 78

Exit in Crystal

exit Weight: 79

Http Server in Crystal

http-server Weight: 79

Execing Processes in Crystal

execing-processes Weight: 82