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小鋒  2023-06-06 10:13:26

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name = "Alice"
age = 25
formatted_string = "My name is %s and I am %d years old." % (name, age)
print(formatted_string)

a = 10
b = 3
remainder = a % b
print(remainder)

number = 3.14159
formatted_number = "The value of pi is approximately %.2f." % number
print(formatted_number)

name = "Alice"
age = 25
formatted_string = f"My name is {name} and I am {age} years old."
print(formatted_string)

其他答案

• 匿(ni)名用戶 2023-06-06 10:13:26

  　　在(zai)(zai)(zai)Python中，百分號(%)符(fu)(fu)(fu)(fu)號有(you)多種(zhong)用(yong)(yong)法(fa)，可(ke)(ke)(ke)(ke)用(yong)(yong)于格(ge)(ge)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)化(hua)(hua)字(zi)符(fu)(fu)(fu)(fu)串(chuan)和執行(xing)數(shu)(shu)(shu)值(zhi)(zhi)計(ji)算(suan)。在(zai)(zai)(zai)字(zi)符(fu)(fu)(fu)(fu)串(chuan)格(ge)(ge)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)化(hua)(hua)方面，%操(cao)(cao)作符(fu)(fu)(fu)(fu)用(yong)(yong)于將變量(liang)的(de)值(zhi)(zhi)插(cha)入(ru)到(dao)格(ge)(ge)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)化(hua)(hua)字(zi)符(fu)(fu)(fu)(fu)串(chuan)中。這種(zhong)方法(fa)被稱為"舊式(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)字(zi)符(fu)(fu)(fu)(fu)串(chuan)格(ge)(ge)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)化(hua)(hua)"，雖然在(zai)(zai)(zai)Python 3中已(yi)經有(you)了(le)更先進的(de)方法(fa)，但%操(cao)(cao)作符(fu)(fu)(fu)(fu)仍(reng)然廣泛使用(yong)(yong)。使用(yong)(yong)%操(cao)(cao)作符(fu)(fu)(fu)(fu)格(ge)(ge)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)化(hua)(hua)字(zi)符(fu)(fu)(fu)(fu)串(chuan)時，需要在(zai)(zai)(zai)格(ge)(ge)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)化(hua)(hua)字(zi)符(fu)(fu)(fu)(fu)串(chuan)中使用(yong)(yong)占(zhan)位(wei)符(fu)(fu)(fu)(fu)來(lai)指定變量(liang)的(de)插(cha)入(ru)位(wei)置和格(ge)(ge)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)。常(chang)見(jian)的(de)占(zhan)位(wei)符(fu)(fu)(fu)(fu)包括%d(整數(shu)(shu)(shu))、%f(浮點數(shu)(shu)(shu))、%s(字(zi)符(fu)(fu)(fu)(fu)串(chuan))等(deng)。此外(wai)，%操(cao)(cao)作符(fu)(fu)(fu)(fu)還支持對數(shu)(shu)(shu)值(zhi)(zhi)進行(xing)格(ge)(ge)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)化(hua)(hua)控制(zhi)。可(ke)(ke)(ke)(ke)以(yi)通過在(zai)(zai)(zai)占(zhan)位(wei)符(fu)(fu)(fu)(fu)中添加格(ge)(ge)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)化(hua)(hua)選項來(lai)控制(zhi)數(shu)(shu)(shu)值(zhi)(zhi)的(de)顯示(shi)方式(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)，例如指定小數(shu)(shu)(shu)位(wei)數(shu)(shu)(shu)、寬(kuan)度和對齊方式(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)等(deng)。除(chu)(chu)了(le)字(zi)符(fu)(fu)(fu)(fu)串(chuan)格(ge)(ge)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)化(hua)(hua)，%操(cao)(cao)作符(fu)(fu)(fu)(fu)還可(ke)(ke)(ke)(ke)用(yong)(yong)于執行(xing)數(shu)(shu)(shu)值(zhi)(zhi)計(ji)算(suan)中的(de)取(qu)模(mo)運(yun)算(suan)。取(qu)模(mo)運(yun)算(suan)是計(ji)算(suan)一(yi)個(ge)(ge)數(shu)(shu)(shu)除(chu)(chu)以(yi)另一(yi)個(ge)(ge)數(shu)(shu)(shu)后(hou)得到(dao)的(de)余數(shu)(shu)(shu)。總而言之，Python中的(de)%操(cao)(cao)作符(fu)(fu)(fu)(fu)具有(you)多種(zhong)用(yong)(yong)途。它可(ke)(ke)(ke)(ke)用(yong)(yong)于字(zi)符(fu)(fu)(fu)(fu)串(chuan)格(ge)(ge)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)化(hua)(hua)，讓我們能夠將變量(liang)的(de)值(zhi)(zhi)插(cha)入(ru)到(dao)格(ge)(ge)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)化(hua)(hua)字(zi)符(fu)(fu)(fu)(fu)串(chuan)中。此外(wai)，%操(cao)(cao)作符(fu)(fu)(fu)(fu)還可(ke)(ke)(ke)(ke)以(yi)執行(xing)數(shu)(shu)(shu)值(zhi)(zhi)計(ji)算(suan)中的(de)取(qu)模(mo)運(yun)算(suan)，用(yong)(yong)于計(ji)算(suan)兩個(ge)(ge)數(shu)(shu)(shu)相(xiang)除(chu)(chu)后(hou)的(de)余數(shu)(shu)(shu)。盡管Python提供了(le)更現代(dai)的(de)字(zi)符(fu)(fu)(fu)(fu)串(chuan)格(ge)(ge)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)化(hua)(hua)和數(shu)(shu)(shu)值(zhi)(zhi)計(ji)算(suan)方法(fa)，但%操(cao)(cao)作符(fu)(fu)(fu)(fu)作為一(yi)種(zhong)簡潔而常(chang)用(yong)(yong)的(de)方式(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)，仍(reng)然被廣泛使用(yong)(yong)。

• 匿名(ming)用戶 2023-06-06 10:13:26

  　　在(zai)Python中，%被用(yong)作格(ge)式(shi)化字(zi)(zi)符(fu)(fu)(fu)(fu)串(chuan)的(de)占(zhan)位(wei)符(fu)(fu)(fu)(fu)。它可(ke)以讓字(zi)(zi)符(fu)(fu)(fu)(fu)串(chuan)和變量(liang)相互交替(ti)，在(zai)輸(shu)(shu)出(chu)(chu)(chu)時控(kong)制格(ge)式(shi)，從(cong)而更(geng)好地呈現信息。%的(de)具體用(yong)法如(ru)下：1. 占(zhan)位(wei)符(fu)(fu)(fu)(fu)：在(zai)輸(shu)(shu)出(chu)(chu)(chu)字(zi)(zi)符(fu)(fu)(fu)(fu)串(chuan)時，可(ke)以使(shi)用(yong)%作為占(zhan)位(wei)符(fu)(fu)(fu)(fu)，代(dai)替(ti)一個(ge)或多個(ge)變量(liang)。%s表(biao)示字(zi)(zi)符(fu)(fu)(fu)(fu)串(chuan)類型(xing)的(de)占(zhan)位(wei)符(fu)(fu)(fu)(fu)，%d表(biao)示整數(shu)類型(xing)的(de)占(zhan)位(wei)符(fu)(fu)(fu)(fu)。在(zai)輸(shu)(shu)出(chu)(chu)(chu)時，%s會(hui)被name的(de)值替(ti)換(huan)掉(diao)，%d會(hui)被age的(de)值替(ti)換(huan)掉(diao)。2. 指(zhi)定輸(shu)(shu)出(chu)(chu)(chu)寬度：可(ke)以通(tong)過(guo)在(zai)占(zhan)位(wei)符(fu)(fu)(fu)(fu)中加入數(shu)字(zi)(zi)，指(zhi)定輸(shu)(shu)出(chu)(chu)(chu)的(de)總(zong)寬度。3. 精(jing)度控(kong)制：對(dui)于浮點(dian)數(shu)類型(xing)，可(ke)以使(shi)用(yong)%.nf的(de)格(ge)式(shi)，控(kong)制輸(shu)(shu)出(chu)(chu)(chu)的(de)小數(shu)位(wei)數(shu)。4. 日期(qi)格(ge)式(shi)化：在(zai)輸(shu)(shu)出(chu)(chu)(chu)日期(qi)時，可(ke)以使(shi)用(yong)%y、%m、%d等(deng)占(zhan)位(wei)符(fu)(fu)(fu)(fu)，指(zhi)定輸(shu)(shu)出(chu)(chu)(chu)的(de)年、月、日等(deng)信息。總(zong)之，%在(zai)Python中是(shi)一個(ge)十(shi)分常(chang)用(yong)的(de)符(fu)(fu)(fu)(fu)號(hao)，用(yong)于格(ge)式(shi)化字(zi)(zi)符(fu)(fu)(fu)(fu)串(chuan)并控(kong)制輸(shu)(shu)出(chu)(chu)(chu)格(ge)式(shi)。對(dui)于初學者來說，掌握其基本用(yong)法是(shi)十(shi)分必要的(de)。

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