c璇█濡備綍鍒ゆ柇閿洏杈撳叆鍐呭涓虹┖
鍦–璇█涓紝鍙互浣跨敤scanf()
鍑芥暟鏉ュ垽鏂敭鐩樿緭鍏ュ唴瀹规槸鍚︿负绌恒€傚叿浣撴柟娉曞涓嬶細
#include <stdio.h>
int main() {
char input[100];
printf("璇疯緭鍏ュ唴瀹癸細");
scanf("%s", input);
if(input[0] == '\0') {
printf("杈撳叆鍐呭涓虹┖\n");
} else {
printf("杈撳叆鍐呭涓猴細%s\n", input);
}
return 0;
}
鍦ㄤ笂闈㈢殑浠g爜涓紝棣栧厛瀹氫箟涓€涓瓧绗︽暟缁?code>input鐢ㄦ潵瀛樺偍杈撳叆鐨勫唴瀹广€傜劧鍚庨€氳繃scanf()
鍑芥暟灏嗚緭鍏ョ殑鍐呭瀛樺偍鍒?code>input鏁扮粍涓€傛帴鐫€閫氳繃鍒ゆ柇input[0]
鏄惁涓虹┖瀛楃(鈥榎0鈥?鏉ュ垽鏂緭鍏ュ唴瀹规槸鍚︿负绌恒€傚鏋?code>input[0]涓虹┖瀛楃锛屽垯琛ㄧず杈撳叆鍐呭涓虹┖锛涘惁鍒欙紝鎵撳嵃鍑鸿緭鍏ュ唴瀹广€?/p>
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