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-> 所有的 C 函数
所有的 C 函数
abort
abs
acos
asctime
asin
assert
atan
atan2
atexit
atof
atoi
atol
bsearch
calloc
ceil
clearerr
clock
cos
cosh
ctime
difftime
div
exit
exp
fabs
fclose
feof
ferror
fflush
fgetc
fgetpos
fgets
floor
fmod
fopen
fprintf
fputc
fputs
fread
free
freopen
frexp
fscanf
fseek
fsetpos
ftell
fwrite
getc
getchar
getenv
gets
gmtime
isalnum
isalpha
iscntrl
isdigit
isgraph
islower
isprint
ispunct
isspace
isupper
isxdigit
labs
ldexp
ldiv
localtime
log
log10
longjmp
malloc
memchr
memcmp
memcpy
memmove
memset
mktime
modf
perror
pow
printf
putc
putchar
puts
qsort
raise
rand
realloc
remove
rename
rewind
scanf
setbuf
setjmp
setvbuf
signal
sin
sinh
sprintf
sqrt
srand
sscanf
strcat
strchr
strcmp
strcoll
strcpy
strcspn
strerror
strftime
strlen
strncat
strncmp
strncpy
strpbrk
strrchr
strspn
strstr
strtod
strtok
strtol
strtoul
strxfrm
system
tan
tanh
time
tmpfile
tmpnam
tolower
toupper
ungetc
va_arg
vprintf, vfprintf,