c語(yǔ)言從入門到精通__第15章.ppt

《c語(yǔ)言從入門到精通__第15章.ppt》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫(kù)。

1、第15章庫(kù)函數(shù)標(biāo)準(zhǔn)C庫(kù)函數(shù)數(shù)學(xué)函數(shù)字符串處理函數(shù)字符處理函數(shù)轉(zhuǎn)換和存儲(chǔ)管理函數(shù)隨機(jī)函數(shù)日期和時(shí)間處理函數(shù)診斷函數(shù)命令行參數(shù)其它函數(shù)綜合應(yīng)用——猜數(shù)字游戲跟我上機(jī)第15章庫(kù)函數(shù)標(biāo)準(zhǔn)C庫(kù)函數(shù)數(shù)學(xué)函數(shù)字符串處理函數(shù)字符處理函數(shù)轉(zhuǎn)換和存儲(chǔ)管理函數(shù)隨機(jī)函數(shù)日期和時(shí)間處理函數(shù)診斷函數(shù)命令行參數(shù)其它函數(shù)綜合應(yīng)用——猜數(shù)字游戲跟我上機(jī)第15章庫(kù)函數(shù)標(biāo)準(zhǔn)C庫(kù)函數(shù)數(shù)學(xué)函數(shù)字符串處理函數(shù)字符處理函數(shù)轉(zhuǎn)換和存儲(chǔ)管理函數(shù)隨機(jī)函數(shù)日期和時(shí)間處理函數(shù)診斷函數(shù)命令行參數(shù)其它函數(shù)綜合應(yīng)用——猜數(shù)字游戲跟我上機(jī)第15章庫(kù)函數(shù)標(biāo)準(zhǔn)C庫(kù)函數(shù)數(shù)學(xué)函數(shù)字符串處理函數(shù)字符處理函數(shù)轉(zhuǎn)換和存儲(chǔ)管理函數(shù)隨

2、機(jī)函數(shù)日期和時(shí)間處理函數(shù)診斷函數(shù)命令行參數(shù)其它函數(shù)綜合應(yīng)用——猜數(shù)字游戲跟我上機(jī)第15章庫(kù)函數(shù)標(biāo)準(zhǔn)C庫(kù)函數(shù)數(shù)學(xué)函數(shù)字符串處理函數(shù)字符處理函數(shù)轉(zhuǎn)換和存儲(chǔ)管理函數(shù)隨機(jī)函數(shù)日期和時(shí)間處理函數(shù)診斷函數(shù)命令行參數(shù)其它函數(shù)綜合應(yīng)用——猜數(shù)字游戲跟我上機(jī)第15章庫(kù)函數(shù)標(biāo)準(zhǔn)C庫(kù)函數(shù)數(shù)學(xué)函數(shù)字符串處理函數(shù)字符處理函數(shù)轉(zhuǎn)換和存儲(chǔ)管理函數(shù)隨機(jī)函數(shù)日期和時(shí)間處理函數(shù)診斷函數(shù)命令行參數(shù)其它函數(shù)綜合應(yīng)用——猜數(shù)字游戲跟我上機(jī)第15章庫(kù)函數(shù)標(biāo)準(zhǔn)C庫(kù)函數(shù)數(shù)學(xué)函數(shù)字符串處理函數(shù)字符處理函數(shù)轉(zhuǎn)換和存儲(chǔ)管理函數(shù)隨機(jī)函數(shù)日期和時(shí)間處理函數(shù)診斷函數(shù)命令行參數(shù)其它函數(shù)綜合應(yīng)用——猜數(shù)字游戲跟我上機(jī)

3、第15章庫(kù)函數(shù)標(biāo)準(zhǔn)C庫(kù)函數(shù)數(shù)學(xué)函數(shù)字符串處理函數(shù)字符處理函數(shù)轉(zhuǎn)換和存儲(chǔ)管理函數(shù)隨機(jī)函數(shù)日期和時(shí)間處理函數(shù)診斷函數(shù)命令行參數(shù)其它函數(shù)綜合應(yīng)用——猜數(shù)字游戲跟我上機(jī)第15章庫(kù)函數(shù)標(biāo)準(zhǔn)C庫(kù)函數(shù)數(shù)學(xué)函數(shù)字符串處理函數(shù)字符處理函數(shù)轉(zhuǎn)換和存儲(chǔ)管理函數(shù)隨機(jī)函數(shù)日期和時(shí)間處理函數(shù)診斷函數(shù)命令行參數(shù)其它函數(shù)綜合應(yīng)用——猜數(shù)字游戲跟我上機(jī)第15章庫(kù)函數(shù)標(biāo)準(zhǔn)C庫(kù)函數(shù)數(shù)學(xué)函數(shù)字符串處理函數(shù)字符處理函數(shù)轉(zhuǎn)換和存儲(chǔ)管理函數(shù)隨機(jī)函數(shù)日期和時(shí)間處理函數(shù)診斷函數(shù)命令行參數(shù)其它函數(shù)綜合應(yīng)用——猜數(shù)字游戲跟我上機(jī)第15章庫(kù)函數(shù)標(biāo)準(zhǔn)C庫(kù)函數(shù)數(shù)學(xué)函數(shù)字符串處理函數(shù)字符處理函數(shù)轉(zhuǎn)換和存儲(chǔ)管理函數(shù)隨

4、機(jī)函數(shù)日期和時(shí)間處理函數(shù)診斷函數(shù)命令行參數(shù)其它函數(shù)綜合應(yīng)用——猜數(shù)字游戲跟我上機(jī)第15章庫(kù)函數(shù)標(biāo)準(zhǔn)C庫(kù)函數(shù)數(shù)學(xué)函數(shù)字符串處理函數(shù)字符處理函數(shù)轉(zhuǎn)換和存儲(chǔ)管理函數(shù)隨機(jī)函數(shù)日期和時(shí)間處理函數(shù)診斷函數(shù)命令行參數(shù)其它函數(shù)綜合應(yīng)用——猜數(shù)字游戲跟我上機(jī)第15章庫(kù)函數(shù)標(biāo)準(zhǔn)C庫(kù)函數(shù)數(shù)學(xué)函數(shù)字符串處理函數(shù)字符處理函數(shù)轉(zhuǎn)換和存儲(chǔ)管理函數(shù)隨機(jī)函數(shù)日期和時(shí)間處理函數(shù)診斷函數(shù)命令行參數(shù)其它函數(shù)綜合應(yīng)用——猜數(shù)字游戲跟我上機(jī)15.1標(biāo)準(zhǔn)C庫(kù)函數(shù)名稱函數(shù)類型診斷函數(shù)字符測(cè)試錯(cuò)誤檢測(cè)系統(tǒng)定義的浮點(diǎn)型界限

5、ts.h>系統(tǒng)定義的整數(shù)界限區(qū)域定義數(shù)學(xué)非局部的函數(shù)調(diào)用異常處理和終端信號(hào)可變長(zhǎng)度參數(shù)處理系統(tǒng)常量輸入輸出多種公用函數(shù)字符串處理時(shí)間和日期函數(shù)15.2數(shù)學(xué)函數(shù)15.2.1絕對(duì)值函數(shù)15.2.2冪函數(shù)和開(kāi)平方函數(shù)15.2.3指數(shù)函數(shù)和對(duì)數(shù)函數(shù)15.2.4三角函數(shù)15.2.5取整函數(shù)和取余函數(shù)15.2.1絕對(duì)值函數(shù)原型功能intabs(intn)計(jì)算整數(shù)n的絕對(duì)值long

6、labs(longn)計(jì)算長(zhǎng)整數(shù)n的絕對(duì)值doublefabs(doublex)計(jì)算雙精度實(shí)數(shù)x的絕對(duì)值15.2.1絕對(duì)值函數(shù)【范例15-1】求整數(shù)的絕對(duì)值。01#include/*包含標(biāo)準(zhǔn)輸入輸出頭文件*//*包含標(biāo)準(zhǔn)輸入輸出頭文件*/02#include/*包含數(shù)學(xué)頭文件*//*包含數(shù)學(xué)頭文件*/03intmain()04{05intx;06x=-5;07printf("

7、%d

8、=%d",x,abs(x));/*調(diào)用絕對(duì)值函數(shù)*/08x=0;09printf("

9、%d

10、=%d",x,abs(x));/*調(diào)用絕

11、對(duì)值函數(shù)*/10x=+5;11printf("

12、%d

13、=%d",x,abs(x));/*調(diào)用絕對(duì)值函數(shù)*/12getchar();/*等待鍵入字符*//*等待鍵入字符*/13return0;14}15.2.2冪函數(shù)和開(kāi)平方函數(shù)原型功能doublepow(doublex,doubley)計(jì)算雙精度實(shí)數(shù)x的y次冪doublesqrt(doublex)計(jì)算雙精度實(shí)數(shù)x的平方根15.2.3指數(shù)函數(shù)和對(duì)數(shù)函數(shù)原型功能doubleexp(doublex)計(jì)算e的雙精度實(shí)數(shù)x次冪doublelog(doublex)計(jì)算以e為底的雙精度實(shí)數(shù)x的對(duì)數(shù)ln(x)doub

14、lelog10(doublex)計(jì)算以10為底的雙精度實(shí)數(shù)x的對(duì)數(shù)log10(x