strlen計(jì)算字符串長(zhǎng)度怎么數(shù) 輸入一個(gè)字符串，計(jì)算其長(zhǎng)度(不用strlen函數(shù))？
輸入一個(gè)字符串，計(jì)算其長(zhǎng)度(不用strlen函數(shù))？#Include main（）{chartr[20]inti，J printf（“please input string:”）scanf（%s”，S
輸入一個(gè)字符串，計(jì)算其長(zhǎng)度(不用strlen函數(shù))？
#Include main（）{chartr[20]inti，J printf（“please input string:”）scanf（%s”，STR）//為（J=0j<20j）{if（STR[J]輸入字符串！=“0”{I}else{break}printf（“字符串的長(zhǎng)度是%d”，I）//輸出}