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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta name="generator" content="HTML Tidy, see www.w3.org"><link type="text/css" rel="stylesheet" href="../functions/style.css"><title>System Interfaces</title></head><body bgcolor="white"><basefont size="3"> <h2>System Interfaces</h2><ul><li><a href="../functions/FD_CLR.html" target="main">FD_CLR()</a></li><li><a href="../functions/_Exit.html" target="main">_Exit()</a></li><li><a href="../functions/_longjmp.html" target="main">_longjmp()</a></li><li><a href="../functions/_setjmp.html" target="main">_setjmp()</a></li><li><a href="../functions/_tolower.html" target="main">_tolower()</a></li><li><a href="../functions/_toupper.html" target="main">_toupper()</a></li><li><a href="../functions/a64l.html" target="main">a64l()</a></li><li><a href="../functions/abort.html" target="main">abort()</a></li><li><a href="../functions/abs.html" target="main">abs()</a></li><li><a href="../functions/accept.html" target="main">accept()</a></li><li><a href="../functions/access.html" target="main">access()</a></li><li><a href="../functions/acos.html" target="main">acos()</a></li><li><a href="../functions/acosf.html" target="main">acosf()</a></li><li><a href="../functions/acosh.html" target="main">acosh()</a></li><li><a href="../functions/acosl.html" target="main">acosl()</a></li><li><a href="../functions/aio_cancel.html" target="main">aio_cancel()</a></li><li><a href="../functions/aio_error.html" target="main">aio_error()</a></li><li><a href="../functions/aio_fsync.html" target="main">aio_fsync()</a></li><li><a href="../functions/aio_read.html" target="main">aio_read()</a></li><li><a href="../functions/aio_return.html" target="main">aio_return()</a></li><li><a href="../functions/aio_suspend.html" target="main">aio_suspend()</a></li><li><a href="../functions/aio_write.html" target="main">aio_write()</a></li><li><a href="../functions/alarm.html" target="main">alarm()</a></li><li><a href="../functions/asctime.html" target="main">asctime()</a></li><li><a href="../functions/asin.html" target="main">asin()</a></li><li><a href="../functions/asinf.html" target="main">asinf()</a></li><li><a href="../functions/asinh.html" target="main">asinh()</a></li><li><a href="../functions/asinhf.html" target="main">asinhf()</a></li><li><a href="../functions/asinl.html" target="main">asinl()</a></li><li><a href="../functions/assert.html" target="main">assert()</a></li><li><a href="../functions/atan.html" target="main">atan()</a></li><li><a href="../functions/atan2.html" target="main">atan2()</a></li><li><a href="../functions/atanf.html" target="main">atanf()</a></li><li><a href="../functions/atanh.html" target="main">atanh()</a></li><li><a href="../functions/atanl.html" target="main">atanl()</a></li><li><a href="../functions/atexit.html" target="main">atexit()</a></li><li><a href="../functions/atof.html" target="main">atof()</a></li><li><a href="../functions/atoi.html" target="main">atoi()</a></li><li><a href="../functions/atol.html" target="main">atol()</a></li><li><a href="../functions/basename.html" target="main">basename()</a></li><li><a href="../functions/bcmp.html" target="main">bcmp()</a></li><li><a href="../functions/bcopy.html" target="main">bcopy()</a></li><li><a href="../functions/bind.html" target="main">bind()</a></li><li><a href="../functions/bsd_signal.html" target="main">bsd_signal()</a></li><li><a href="../functions/bsearch.html" target="main">bsearch()</a></li><li><a href="../functions/btowc.html" target="main">btowc()</a></li><li><a href="../functions/bzero.html" target="main">bzero()</a></li><li><a href="../functions/cabs.html" target="main">cabs()</a></li><li><a href="../functions/cacos.html" target="main">cacos()</a></li><li><a href="../functions/cacosf.html" target="main">cacosf()</a></li><li><a href="../functions/cacosh.html" target="main">cacosh()</a></li><li><a href="../functions/cacosl.html" target="main">cacosl()</a></li><li><a href="../functions/calloc.html" target="main">calloc()</a></li><li><a href="../functions/carg.html" target="main">carg()</a></li><li><a href="../functions/casin.html" target="main">casin()</a></li><li><a href="../functions/casinf.html" target="main">casinf()</a></li><li><a href="../functions/casinh.html" target="main">casinh()</a></li><li><a href="../functions/casinl.html" target="main">casinl()</a></li><li><a href="../functions/catan.html" target="main">catan()</a></li><li><a href="../functions/catanf.html" target="main">catanf()</a></li><li><a href="../functions/catanh.html" target="main">catanh()</a></li><li><a href="../functions/catanl.html" target="main">catanl()</a></li><li><a href="../functions/catclose.html" target="main">catclose()</a></li><li><a href="../functions/catgets.html" target="main">catgets()</a></li><li><a href="../functions/catopen.html" target="main">catopen()</a></li><li><a href="../functions/cbrt.html" target="main">cbrt()</a></li><li><a href="../functions/ccos.html" target="main">ccos()</a></li><li><a href="../functions/ccosf.html" target="main">ccosf()</a></li><li><a href="../functions/ccosh.html" target="main">ccosh()</a></li><li><a href="../functions/ccosl.html" target="main">ccosl()</a></li><li><a href="../functions/ceil.html" target="main">ceil()</a></li><li><a href="../functions/cexp.html" target="main">cexp()</a></li><li><a href="../functions/cfgetispeed.html" target="main">cfgetispeed()</a></li><li><a href="../functions/cfgetospeed.html" target="main">cfgetospeed()</a></li><li><a href="../functions/cfsetispeed.html" target="main">cfsetispeed()</a></li><li><a href="../functions/cfsetospeed.html" target="main">cfsetospeed()</a></li><li><a href="../functions/chdir.html" target="main">chdir()</a></li><li><a href="../functions/chmod.html" target="main">chmod()</a></li><li><a href="../functions/chown.html" target="main">chown()</a></li><li><a href="../functions/cimag.html" target="main">cimag()</a></li><li><a href="../functions/clearerr.html" target="main">clearerr()</a></li><li><a href="../functions/clock.html" target="main">clock()</a></li><li><a href="../functions/clock_getcpuclockid.html" target="main">clock_getcpuclockid()</a></li><li><a href="../functions/clock_getres.html" target="main">clock_getres()</a></li><li><a href="../functions/clock_nanosleep.html" target="main">clock_nanosleep()</a></li><li><a href="../functions/clock_settime.html" target="main">clock_settime()</a></li><li><a href="../functions/clog.html" target="main">clog()</a></li><li><a href="../functions/close.html" target="main">close()</a></li><li><a href="../functions/closedir.html" target="main">closedir()</a></li><li><a href="../functions/closelog.html" target="main">closelog()</a></li><li><a href="../functions/confstr.html" target="main">confstr()</a></li><li><a href="../functions/conj.html" target="main">conj()</a></li><li><a href="../functions/connect.html" target="main">connect()</a></li><li><a href="../functions/copysign.html" target="main">copysign()</a></li><li><a href="../functions/cos.html" target="main">cos()</a></li><li><a href="../functions/cosf.html" target="main">cosf()</a></li><li><a href="../functions/cosh.html" target="main">cosh()</a></li><li><a href="../functions/cosl.html" target="main">cosl()</a></li><li><a href="../functions/cpow.html" target="main">cpow()</a></li><li><a href="../functions/cproj.html" target="main">cproj()</a></li><li><a href="../functions/creal.html" target="main">creal()</a></li><li><a href="../functions/creat.html" target="main">creat()</a></li><li><a href="../functions/crypt.html" target="main">crypt()</a></li><li><a href="../functions/csin.html" target="main">csin()</a></li><li><a href="../functions/csinf.html" target="main">csinf()</a></li><li><a href="../functions/csinh.html" target="main">csinh()</a></li><li><a href="../functions/csinl.html" target="main">csinl()</a></li><li><a href="../functions/csqrt.html" target="main">csqrt()</a></li><li><a href="../functions/ctan.html" target="main">ctan()</a></li><li><a href="../functions/ctanf.html" target="main">ctanf()</a></li><li><a href="../functions/ctanh.html" target="main">ctanh()</a></li><li><a href="../functions/ctanl.html" target="main">ctanl()</a></li><li><a href="../functions/ctermid.html" target="main">ctermid()</a></li><li><a href="../functions/ctime.html" target="main">ctime()</a></li><li><a href="../functions/daylight.html" target="main">daylight()</a></li><li><a href="../functions/dbm_clearerr.html" target="main">dbm_clearerr()</a></li><li><a href="../functions/difftime.html" target="main">difftime()</a></li><li><a href="../functions/dirname.html" target="main">dirname()</a></li><li><a href="../functions/div.html" target="main">div()</a></li><li><a href="../functions/dlclose.html" target="main">dlclose()</a></li><li><a href="../functions/dlerror.html" target="main">dlerror()</a></li><li><a href="../functions/dlopen.html" target="main">dlopen()</a></li><li><a href="../functions/dlsym.html" target="main">dlsym()</a></li><li><a href="../functions/drand48.html" target="main">drand48()</a></li><li><a href="../functions/dup.html" target="main">dup()</a></li><li><a href="../functions/ecvt.html" target="main">ecvt()</a></li><li><a href="../functions/encrypt.html" target="main">encrypt()</a></li><li><a href="../functions/endgrent.html" target="main">endgrent()</a></li><li><a href="../functions/endhostent.html" target="main">endhostent()</a></li><li><a href="../functions/endnetent.html" target="main">endnetent()</a></li><li><a href="../functions/endprotoent.html" target="main">endprotoent()</a></li><li><a href="../functions/endpwent.html" target="main">endpwent()</a></li><li><a href="../functions/endservent.html" target="main">endservent()</a></li><li><a href="../functions/endutxent.html" target="main">endutxent()</a></li><li><a href="../functions/environ.html" target="main">environ</a></li><li><a href="../functions/erand48.html" target="main">erand48()</a></li><li><a href="../functions/erf.html" target="main">erf()</a></li><li><a href="../functions/erfc.html" target="main">erfc()</a></li><li><a href="../functions/erff.html" target="main">erff()</a></li><li><a href="../functions/errno.html" target="main">errno</a></li><li><a href="../functions/exec.html" target="main">exec()</a></li><li><a href="../functions/exit.html" target="main">exit()</a></li><li><a href="../functions/exp.html" target="main">exp()</a></li><li><a href="../functions/exp2.html" target="main">exp2()</a></li><li><a href="../functions/expm1.html" target="main">expm1()</a></li><li><a href="../functions/fabs.html" target="main">fabs()</a></li><li><a href="../functions/fattach.html" target="main">fattach()</a></li><li><a href="../functions/fchdir.html" target="main">fchdir()</a></li><li><a href="../functions/fchmod.html" target="main">fchmod()</a></li><li><a href="../functions/fchown.html" target="main">fchown()</a></li><li><a href="../functions/fclose.html" target="main">fclose()</a></li><li><a href="../functions/fcntl.html" target="main">fcntl()</a></li><li><a href="../functions/fcvt.html" target="main">fcvt()</a></li><li><a href="../functions/fdatasync.html" target="main">fdatasync()</a></li><li><a href="../functions/fdetach.html" target="main">fdetach()</a></li><li><a href="../functions/fdim.html" target="main">fdim()</a></li>⌨️ 快捷键说明
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